Lisbon earthquake; Silver Medal. Obverse: Lisbon; depicted as a crowned woman; is leaning on a water jug and Mercury staff with a coat of arms in front of them among the ruins of a city within a circle. Reverse: Lisbon city for earthquake; in the foreground ships under pennants with inscription; cut off: signature; Lisbon; Johan George Holtzhey; Amsterdam; 1755; silver (metal); striking (metalworking); d 5.5 cm x w 61.22 gr