Three-groats, 1664, Vilnius mint
John II Casimir Vasa (1648 - 1668)
Obverse: Twenty-fourth bust.
Lettering: 
IOA • CASIM • D : G • REX • POLO : & S / • L B
Reverse: Tenth Knight. Legend in four lines. Roman "III" to the right of Knight.
Lettering: / III GROS • ARGE TRIP • MAG DVC • LIT •1•6• / 
/ •64
Identification
Ivanauskas, E. (2013). Coins and Bars of Lithuania 1236-2012 (Vol. 2). Kaunas: Author
number: 6JK8-2
Rarity: RRRR (Not more than 10 pieces)
Main data
Denomination: Three-groats
Value: 3
Currency: Groat
Year: 1664
Type: Regular
Minting
Mint: Vilnius
Minting type: hammered
Parameters
Material: Silver
Diameter (mm): 20
Shape: Round
