5INP50VCO_s
In the making of these, the aluminum collar gets pressed up tight against the edge of the coin, so it'd be very difficult (if not impossible) to substitute a different coin. In any event, you shouldn't see this particular one with a coin dated later than 1950, as the contemporary article below would indicate -
See: https://timesmachine.nytimes.com/ti...4650787.html
Colligo ergo sum























