Watch List notes:

Russia USSR 50 Kopecks 1922 ПЛ St. Petersburg (St. Petersburg) mint. Soviet Federated Socialist Republic 1918-1923. Dated 1922 ПЛ. Averse: National arms within beaded circle. Reverse: Value in center of star within beaded circle. Edge Lettering: Mintmaster's initials. Silver. KM (Y) 83