Gold 17th Century Polish Coin

Coin. Gold. Obv., profile bust of “ Joh. Casimirus) D. G.Rex Pol. & Suec. M. D. L. R. P.” Rev., the arms of Dantzic, and the words 6 Mon. aurea civitat. Gedanens. 1662.” Diam. 1 in. Bequeathed by the late Miss Sarah Solly. V&A no. 1493-1882.