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An Enigmatic Bronze of Constantine the Great

Original Auction Photo

Constantine I, AE3, 18-19mm, 318-319 (for exergue mark), Siscia, Officina 3.  IMP CON_STANT_INVS PERT AVG  Draped, cuirassed bust of Constantine I right, wearing Pannonian cap.  VICTORIAE LAETAE PRINC PERP  Two Victories, standing facing each other, inscribing shield with VOT | PR on altar with X and + design (altar type Y in Appendix on p. 460).  GSIS in exergue.  3.27g.  Unlisted in all known references.

On October 23, 2003, the opportunity to acquire a most unusual bronze coin of Constantine I presented itself. The coin above was offered for auction by Gantcho and Hanna Zagorski via Yahoo. This piece holds a unique opportunity in many respects...

Process

Having been a Six Sigma Black Belt for a major global corporation, my position consisted of analyzing processes and involved a great deal of statistics and documentation. With the successful bid for this coin, I feel I now have the responsibility of documenting it and presenting the findings in an attempt to explain why this coin would possibly have been minted This page will serve as the venue for my research results. It is my intention, when complete, to have a process documented, where I show the life cycle of taking a virtually unknown ancient coin through research and publication.

Naturally, the first and most important task is to determine the authenticity of the piece with respect to it being an ancient product of an official Imperial mint (the Pannonian mint of Siscia or Sisak, Croatia), as presented. The process I plan to follow, once receiving the coin, is to make my initial assessment, weigh the piece, document my observations and produce a larger temporary photograph. Next, I will send the piece to a professional photographer.

The photographer will send the coin to David R. Sear for historical background research and authentication. Once complete, Mr. Sear will return the piece with his findings. For sake of argument and to complete my initial process map at this point, I am going to assume the coin is genuine. If found otherwise, a different process will be documented and followed.

Upon receipt of Mr. Sear's assessment, I will contact John Jencek of Jencek's Ancient Coins and Antiquities to release the obverse legend to be included in his legends database.

Next, the coin will be sent to Curtis Clay and Phil Davis, of Harlan J Berk Ltd., to analyze, make impressions and include in their database.

Upon return of the coin, it will be sent to the British Museum for final analysis and assessment.

In the meantime, I am contacting as many dealers and museum staff, with whom I am good friends, to determine if there are any documented pieces such as this. With their permission, all historical notes and population data will be presented.

January 15, 2004: The original process plan did not occur. The coin first went to Curtis Clay, then David Sear for authentication. I was in the process of redesigning parts of my site, so the rephotographing of the coin needed to be rescheduled. It will occur in the next few weeks. Mr. Clay received the coin before Mr. Sear, upon Mr. Sear's request as he would be out of town during November. The coin, unfortunately, will not be sent to the British Museum for analysis due to recent actions by the U. S. Government in seizing ancient coins bound for foreign lands. These actions create an extremely high risk factor for loss of the unique artifact - a risk I am not willing to take.

February 1, 2004: After rereading parts of RIC and looking at all of the altar designs again, I can't help but wonder how the device gained the description of "altar" in the first place. It would make much more sense if it were a column, since there are reverse types all throughout Imperial coinage with Victory placing a shield on a column. Why would a shield be put on an altar? I'll have to look into this further.

February 7, 2004: Looking once again through RIC, I discovered a gold coin from Thessalonica, #7 on p. 499; and shown on Plate 15.:

Constantine I, AV 4-1/2 solidii, 317, Thessalonica
IMP CONSTANTINVS MAX P F AVG
Laureate, helmeted, cuirassed bust right
VICTO_RIAE LAETAE AVG N
Two Victories, each holding palm-branch, together holding shield inscribed VOT | X on altar (maybe it's a column?) inscribed MVL | XX
. SM . TS . in exergue

What is most remarkable about this piece is Dr. Bruun lists the coin as being struck in 317. This coin, if dateable conclusively to 317, would be a precursor to the series. Also, Thessalonica did not produce this series at all in bronze.

Reviewing other mints brings up yet another very unusual example for this series:

Constantine I, AE Bronze Multiple or Medallion, 318-319, Trier
IMP CONSTANTI_NVS P F AVG
High-crested helmet, cuirassed, spear across right shoulder
VICTORIAE LAETAE PRINCIPIS PERPETVI
Two Victories, standing facing each other, holding shield inscribes VOT | IS | PR on altar
PTR in exergue
9.63g
RIC VII, 208, p.181

In the footnote, Dr. Bruun writes "The date is hard to assess.  The absence of specified vota (VOT X MVL XX) as on the gold multiple of Ticinum #25 suggests that this piece was struck before or after the decennalia, and thus it is natural to connect it with the bronze series of corresponding rev.  Published by A. Alfoldi, Acta Arc. 5, p. 100, who propounded a date immediate after the battle of the Milvian Bridge."

One has to wonder, then, if the Pannonian Hat coin was meant to be a trial piece or pattern for a gold issue for presentation that was never struck, since we can find a large bronze from another mint, also lacking a corresponding gold issue. Another similarity is the absence of a series mark on both coins. PTR on the Trier bronze and GSIS on the Siscia bronze.

Examples of bust types

Until I can acquire examples from Siscia for each of the attested bust types, other mints will be used as a reference. Note - RIC does not attest examples from Siscia with some of the bust types used at other mints and not all of the bust types used in this series were used on issues of Constantine I. I will try to acquire examples of each mint, officina, altar type and all varieties to use for data from which to draw conclusions about this reverse type with the longer legend. These coins will be listed on separate pages, by mint, to avoid having one very large page with too many photos.

Normal bust type B1 - Laureate

Licinius I, AE3, 319-320, Siscia, Officina 3
IMP LICI_NIVS AVG
Laureate head right
VICT . LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR on altar with S
GSIS* in exergue
19mm, 2.41g
RIC VII, 96 (R4)

Normal bust type B3 - Laureate, draped, cuirassed, seen from behind

Crispus, AE3, 319-320, London
FL IVL CRIS_PVS NOB CAES
Laureate, draped, cuirassed bust right, seen from behind
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR above altar with diamond pattern, dot in each corner, circle with dot in center
PLN in exergue
17mm, 3.37g
RIC VII, -- (see #164 for type)

Note: B3 bust type not attested in RIC for this issue at London.

Note: RIC footnotes #164 "is, so to speak, a forewarning of the subsequent issue which was to include obverses of the sons of Constantine". Also, RIC notes for #158, an example with a shield on the altar, referring to the Senckler collection, but was unable to verify. Perhaps this example is another of the "shield on altar" type, as RIC does not describe in any other footnotes a type with large circle and center dot. Jeff Clark agrees with me on the "shield on altar" proposal for this coin.

Normal bust type B4 - Laureate, draped, cuirassed

Licinius II, AE3, 319, Siscia, Officina 4
LICINIVS IVN NOB CAES
Laureate, draped, cuirassed bust right
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR above altar with garland and X design (altar type T)
DSIS pellet in exergue
19mm x 20mm, 2.93g
RIC VII, 70
Ex Warren Esty Collection, March 2004

Note: Not attested in RIC for officina 4

Normal bust type C2 - Radiate, draped, cuirassed, seen from behind

Constantine II, AE3, 319, Ticinum, Officina 3
CONSTANTINVS IVN NOB C
Radiate, draped, cuirassed bust right, seen from behind
VICTORIAE LAETAE PRINC PERP
Two Victories standing facing each other, inscribing shield with VOT | PR set on altar with garland and C
T T in exergue
17mm x 18mm, 3.12g
RIC VII, 95 (R3)


Constantine II, AE3, 320, London
FL CL CONSTAN_TINVS IVN N C
Radiate, draped, cuirassed bust left, seen from behind
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR above altar with wreath and *
PLN in exergue
19mm, 2.65g
RIC VII, -- (see # 181 for type)
Ex Francis Cummings, eBay, May 2004

Note: C2 bust type not attested in RIC for this issue at London.

Normal bust type C3 - Radiate, draped, cuirassed

Crispus, AE3, 319, Ticinum, Officina 2
FL IVL CRISPVS NOB C
Radiate, draped, cuirassed bust right
VICTORIAE LAETAE PRINC PERP
Two Victories standingfacing each other, inscribing shield with VOT | PR set on altar with C
S T in exergue
18mm x 20mm, 2.83g
RIC VII, 93 (R3)
Ex 5 Empires via eBay, February 2004

Normal bust type D6 - Laureate, helmeted, cuirassed

Constantine I, AE3, 318-319, Siscia, Officina 3
IMP CONSTANTINVS AVG
Laureate, helmeted, cuirassed bust right
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield containing wreath ties on bottom with VOT | PR above altar with X and + design (altar type Y)
GSIS in exergue
17mm x 18mm, 2.93g
RIC VII, 54 (R2)
Ex Mediterranean Coins, eBay, January 2004

Variant bust type D6 - Star on helmet

Constantine I, AE3, 318-319, Siscia, Officina 5
IMP CONSTANTINVS P F AVG
Laureate, helmeted, cuirassed bust right, * on helmet
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR above altar with X design and four pellets (altar type W)
ESIS in exergue
17mm x 18mm, 2.88g
RIC VII, 53 (R1)
Ex Ancient Auction House, eBay, July 2004

Note: Although the star in the field of the helmet is the standard for the H11 bust type, field marks on the D6 are rare

Variant bust type D6 - Ear is covered by helmet

Constantine I, AE3, 318-319, Siscia, Officina 2
IMP CONSTANTINVS P F AVG
Laureate, helmeted, cuirassed bust right, no ear type
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR above altar with X design (altar type U)
BSIS in exergue
17mm x 18mm, 2.82g
RIC VII, 53 (R1)
Ex Cameleon Coins, eBay, July 2004

Note: Helmet style without ear flap

Variant obverse type D6 - Unattested legend break

Constantine I, AE3, 318, Siscia, Officina 1
IMP CON_STANTINVS AVG
Laureate, helmeted, cuirassed bust right
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR above altar with X and - design (altar type X)
ASIS* in exergue
18mm x 20mm, 2.83g
RIC VII, 48v

Note: Unattested in RIC for officina 1 and unlisted with obverse legend break according to the footnote for 48 on p. 431

Normal bust type D7 - High-crested helmet, cuirassed

Constantine I, AE3, 319-320, Lugdunum
CONS_TANTINVS P AVG
High-crested helmet, five pellets on crossbar, cuirassed bust right
VICTORIAE LAET PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR set on altar with X design (altar type d)
Two captives in exergue
17mm x 18mm, 2.95g
RIC VII, --
Ex Silenos Coins, eBay, June 2004

Note: Bust type D7 not attested in RIC for this obverse legend

Normal bust type G5 - Laureate, cuirassed, spear across right shoulder, shield on left arm

Crispus, AE3, 318-319, Siscia, Officina 5
IVL CRISPVS NOB CAESAR
Laureate, cuirassed bust left, spear over right shoulder, shield with design of two circles of pellets, * above wavy line in left hand
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR above plain altar (altar type A)
ESIS in exergue
18mm x 20mm, 2.62g
RIC VII, --
Ex Joe Baran, eBay, May 2004

Note: Not attested in RIC VII for bust type G5 for series

Normal bust type H6 - Laureate, helmeted, cuirassed, spear across right shoulder, shield on left arm

Constantine I, AE3, 318-319, Siscia, Officina 3
IMP CONSTANTINVS P F AVG
Laureate, helmeted, cuirassed bust right, spear in right hand over shoulder, round shield in left hand
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield containing wreath ties on bottom with VOT | PR above altar, design not distinguishable
GSIS in exergue
17mm x 19mm, 2.98g
RIC VII, --
Ex Ancient Coins Canada, February 2004

Note: Bust type H6 not attested in RIC VII for this series at Siscia.

Normal bust type H11 - High-crested helmet, cuirassed, spear across right shoulder, mappa in left hand

Constantine I, AE3, 319, Arles, Officina 1
IMP CONSTAN_TINVS AVG
High-crested helmet, four pellets in crossbar, cuirassed bust left, spear across right shoulder, mappa in left hand
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR, above plain altar
PARL in exergue
18mm x 19mm, 3.50g
RIC VII, 192 (R4)
Ex Gantcho and Hanna Zagorski, eBay, May 2004

Normal bust type H12 - High-crested helmet, cuirassed, spear across right shoulder, shield on left arm

Constantine I, AE3, 318, Siscia, Officina 5
IMP CONSTANTI_NVS AVG
High-crested helmet, three vertical pellets on crossbar, two horizontal pellets on plume, cuirassed bust left, spear over right shoulder, shield with large cross and pellets design in left hand
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR above altar with X and four pellets design (altar type W)
ESIS* in exergue
17mm x 19mm, 2.93g
RIC VII, 50v (R4 for type)

Note: Not attested in RIC with obverse legend break I_N at Siscia

Unattested bust type - Laureate, helmeted, cuirassed, spear across right shoulder

Constantine I, AE3, 319, Siscia, Officina 1
IMP CONSTANTINVS P F AVG
Laureate, helmeted, cuirassed bust right, spear in right hand over shoulder
VICTORIAE LAETAE PRINC PERP
Two Victories, standing facing each other, inscribing shield with VOT | PR above altar, with indistinguishable design
ASIS pellet in exergue
19mm x 20mm, 2.84g
RIC VII, --
Ex Dawson Lewis Collection, February 2004

Note: Bust type not attested in RIC VII without shield at Siscia.


Constantine's Travels

During Constantine's reign, there were many events requiring the emperor to travel. Here is the Chronological Table of Principal Events from 313-337 from RIC VII, pp.76-78. Two events stand out as possible reasons and dates for the Pannonia Hat coin - Constantine's capture of Siscia in 316 in the war with Licinius and Constantine's short stay in Siscia in the summer of 317. Since there is no series mark on the coin, it could have been minted in 316 before the series was issued en-masse in bronze as the reverse type made its debut in 315 in Rome on a solidus. Since the coin does have the gamma officina mark, it is most likely not a trial piece for a solidus as all of the other "presentation" type pieces only have the issuing mint and P(ecunia) or S(acra) M(oneta) and no officina designation.

Year Period Event Source
313 September Maximinus II Daza dies in Tarsus  
  Autumn Constantine in Arles Coinage
  November 11 Licinius' second quinquennalia  
314 All Year Constantine in Trier  
315 New Year Processus consularis in Trier Coinage
  Spring Constantine in Lyons Coinage
  July 25 Decennalia in Trier Coinage
    Bassianus' (Constantine's brother-in-law) plot revealed  
  Early August Constantine goes to Italy  
  August 25 Constantine in Rome CTh. xi. 30.3
  From October 19 Constantine in Milan Frg. Vat. 273; coinage
316 Spring Constantine in Gaul CTh.
  Summer Preparations for war of Constantine against Licinius  
    Aquileia mint reopened  
  September 20 Campaign launched from Verona Frg. Vat. 290
316 September-October Siscia captured from Licinius by Constantine  
  October 8 Licinius defeated at Cibalae  
    Valens elevated to Augustus  
    Crispus and Constantine II elevated to Caesars Coinage
    Constantine in Philippopolis  
    Negotiations  
    Campus Ardiensis: drawn battle  
  December 4 Constantine in Serdica CTh. ix. 1. 1
    Negotiations  
317 January 8 Licinius accepts Gallicanus and Bassus as consuls PThead. 57
    Valens executed  
  February 17 Constantine accepts peace Fasti
  March 1 Peace confirmed in Serdica  
    Crispus, Licinius II and Constantine II officially elevated to Caesars  
  March 8 Constantine in Thessalonica CTh. viii. 7. 1
  April 17 Constantine in Serdica CTh. viii. 12. 2; ix. 10. 1
  June 6 Constantine in Sirmium CTh. xi. 30. 7
317   Constantine in Siscia Coinage
  From June 27 Constantine in Thessalonica CTh. vi. 1. 4; coinage
  November 11 Licinius' decennalia  
318 All year Constantine in Aquileia CTh.
    Crispus' Alemannian war  
319 New Year Processus consularis in Aquileia Coinage
  All year Court in Ticinum Coinage
  All year Constantine in Sirmium CTh.
320 New Year Processus consularis in Sirmium Coinage
  Most of the year Court in Sirmium Coinage
  Most of the year Constantine in Serdica CTh.
  July 25 Quindecennalia (in Sirmium?)  
321 February 27 Constantine in Serdica CTh. ii. 19. 2; ix. 42. 1
  March 1 Quinquennalia in Sirmium Coinage
    Crispus' wedding in Sirmium  
    Licinius II's quinquennalia  
322 Earlier part Constantine in Sirmium CTh.
  Summer Sarmatian campaign  
  November 11 Licinius' quindecennalia  
  December 18 Constantine in Serdica CTh. iii. 32. 1
323 February 15 Constantine in Thessalonica CTh. iv. 8. 6
  April 13 Constantine in Byzantium CTh. xi. 30. 12; xii. 1. 8
  May 25 Constantine in Sirmium CTh. xvi. 2. 5
  Summer Gothic campaign  
324 January 23 Constantine in Sirmium CTh. xii. 17; vi. 22. 1
  March 8 Constantine in Thessalonica CTh. xiii. 5. 4; coinage
  July 3 Battle of Adrianople  
  Mid July Capture of Heraclea Coinage
  Late July Martinian elevated to Augustus  
    Constantius II elevated to Caesar Coinage
  September 18 Battle of Chrysopolis  
  September-October Licinius surrenders  
  October-November Council of Ancyra summoned  
  November 8 Constantius II officially Caesar  
    Helena and Fausta elevated to Augustae Coinage
  December Constantine in Antioch Coinage
    Council of Antioch  
325 January Constantine in Antioch  
    Nicaean Council summoned  
  February 25 Constantine in Nicomedia CTh. i. 15. 1
    Letter to Alexander and Arius  
  May 20 Opening of Nicaean Council  
  July 19 End of Nicaean Council  
  July 25 Vicennalia in Nicomedia  
326 Early Constantine in Thessalonica Coinage
  February-March Constantine in Heraclea CTh. ix. 3. 2; 7. 1; x. 4. 1
  March 8 Constantine in Constantinople CTh. ii. 10. 4
  April 18 Constantine in Sirmium CTh. ix. 12. 2; coinage
  May 22 Constantine in Sirmium CTh. ix. 1. 5
  June Constantine in Ticinum Coinage
  July 18 Constantine arrives in Rome  
  July 25 Vicennalia in Rome  
  September 27 Constantine departs from Rome  
  August-September Crispus killed in Pola  
  September-October Fausta killed  
  October 23 Constantine in Milan CTh. iv. 22. 1
  December (or 327) Constantine in Siscia Coinage
  December 31 Constantine in Sirmium CTh. iii. 32. 2; coinage
327 February 27 Constantine in Thessalonica CTh. xi. 3. 2; coinage
  May 18 Constantine in Serdica CTh. xi. 7. 4
  June 11 Constantine in Constantinople CTh. ii. 24. 2; coinage
  July 30 Constantine in Nicomedia CTh. xii. 5. 1; coinage
328   Building of capital begins  
  July 5 Constantine in Oescus CTh. vi. 35. 5
  Summer Constantine fortifies the Danube line and builds Dafne Coinage
  Autumn Constantine II's Alamannian war  
  September-December Constantine in Trier? CTh.; coinage
329   Constantine returns to Constantinople via Sirmium, Naissis, Serdica and Heraclea CTh.
330 May 11 Dedication of Constantinople as new capital of Empire  
  July 25 25th anniversary of accession Coinage
  Late Constantine in Thessalonica Coinage
331 Early Constantine in Thessalonica Coinage
  Late Gothic war begins  
332 February 18 Gothic victory  
  April 12 Constantine in Marcianopolis CTh. iii. 5. 4, 5
  Late Constantine in Thessalonica Coinage
333 Early Constantine in Thessalonica Coinage
  December 25 Constans elevated to Caesar  
334 June 17 Constantine in Constantinople CTh. i. 22. 2
  Summer Constantine in Siscia Coinage
  July 5 Constantine in Singidunum CTh. x. 15. 2
    Sarmatian campaign  
  August 25 Constantine in Naissus CTh. xi. 39. 3
    Armenian delegation arrives  
    Constantius II to Syria  
335 Early Felicianus comes Orientis  
    Armenian campaign  
  July 15 Constantine in Constantinople CTh. iii. 5. 6
  July 25 Tricennalia in Nicomedia Coinage
  August-September Constantine in Siscia Coinage
  September 18 Delmatius elevated to Caesar  
    Division of Empire  
  October 23 Constantine in Nicopolis CIust. i. 40. 4
  October 30 Constantine returns to Constantinople  
  November Hanniballian elevated to Rex Regum  
336 April Persian delegation arrives  
  July 25 Tricennalia in Constantinople Coinage
    Constantius II's wedding  
337 May 22 Death of Constantine in Ancyra (suburb of Nicomedia). Baptized on his death-bed and buried in Constantinople in the Church of the Apostles as the thirteenth apostle.  

Project Timeline

October 23, 2003: Coin won on Yahoo auction
November 1, 2003: Received via registered mail
November 4, 2003: Since Mr. Sear would be out of town during the time when I planned to send it to him, it was sent via registered mail to Mr. Clay at Harlan J Berk
November 10-18, 2003: Analysis and additional cleaning by Mr. Clay
November 18, 2003: Received opinion as coin being authentic from Mr. Clay
November 18, 2003: Mr. Clay sent the coin to Mr. Sear
November 25, 2003: Coin received by Mr. Sear
January 15, 2004: Received Certificate of Authenticity from Mr. Sear
January 21, 2004: Received coin from Mr. Sear
January 31, 2004: Sent coin to John Lavender for photographing
February 18, 2004: Coin photography finished and added to site
March 2, 2004: This research page redesigned for better flow, subpage chapters added, subpages for all coins by mint added
April 22, 2005: Coin submitted to lab for non-destructive testing
December 18, 2005: Received coin back from lab. Test results will be published in a future coin article.

Continuing Research

Chapter 1: History - The "Pannonian Cap" during Roman times
Chapter 2: Mints - Map of Roman Empire and listing of when each mint produced coins in this series
Chapter 3: Coins - Links to each mint page with more coins, all RIC information and tables
Chapter 4: Hypotheses - Proposals as to why this coin exists
Chapter 5: Challenges - Is the coin genuine?