Innocent XI 1680 Silver Piastra Coin NGC XF45

1680 silver piastra of Pope Innocent XI (1676-89). Obverse: coat-of-arms. Reverse: St. Peter seated, holding keys, hand raised in benediction. In exergue, the coat of arms of Monsignor Bighi. Lightly circulated with choice surfaces for the issue, graded NGC XF 45. Approximately 44.5mm across, 32 grams.