The rarest variety of the Thorn 1/4 thaler of John II Casimir with a ball-decorated bracket with the denomination of 18 groschen and the initials HDL on the reverse.
Coin specified in Shatalin's catalogue as R7.
Coin was listed on the auction market in Poland only once but without paying attention to this very important detail in the description.
Superb rarity!
Diameter 31 mm, weight 5.85 g