Six-groats, 1666, Vilnius mint
John II Casimir Vasa (1648 - 1668)
Obverse: Crowned Thirty-fourth bust.
Lettering: IOAN CAS D G REX / • T • L • B • / POLO & S
Reverse: Roman "VI" and "Kryszpin" arms below eleventh Knight.
Lettering: GROS ARGEN SEX / VI / 
/ MAG DVC LIT 1666
Identification
Ivanauskas, E. (2013). Coins and Bars of Lithuania 1236-2012 (Vol. 2). Kaunas: Author
number: 7JK17-3
Rarity: R (Not more than 100 pieces)
Main data
Denomination: Six-groats
Value: 6
Currency: Groat
Year: 1666
Type: Regular
Minting
Mint: Vilnius
Minting type: hammered
Parameters
Material: Silver
Shape: Round
