Ducat, 1666, Vilnius mint
John II Casimir Vasa (1648 - 1668)
Obverse: Fourthy-second bust surrounded by laurel wreath.
Lettering: 
IOAN • CASI • D : G • REX • POLO • & • SVE / • T • L • B •
Reverse: Crowned sixteenth Knight, surrounded by laurel wreath.
Lettering: MON • AVRE • MAG • • DVCA • LIT • 1666 / 
/
Identification
Ivanauskas, E. (2013). Coins and Bars of Lithuania 1236-2012 (Vol. 2). Kaunas: Author
number: 10JK1-1
Rarity: RRRR (Not more than 10 pieces)
Main data
Denomination: Ducat
Value: 180
Currency: Groat
Year: 1666
Type: Regular
Minting
Mint: Vilnius
Minting type: hammered
Parameters
Material: Gold
Diameter (mm): 24
Shape: Round
