Coin sold at 20/10/2004 (dd/mm/yyyy)
GBP 3.05
USD 5.50
JPY 596.59
EUR 4.39

US $5.50 
Ended:  Oct-20-04 18:22:09 PDT 
Seller ancientauctionhouse.com

Description  (revised)   
 
Constantine I AE3 "Vows XX" Constantine I "the Great" AD 306-337 AE3
Obv: CONSTANTINVS AVG - Laureate head right. 
Rev: D N CONSTANTINI MAX AVG - Wreath which written within is: VOT XX. Exe: (gamma) SIS (dot in crescent) 

Siscia mint: AD 321 = RIC VII, 168 Rare, page 445 - Vienna Museum./3.66 g.