On offer here is an extremly rare coin. This coin is struck in sterling silver and finished in proof. it measures at approx 65mm in diameter and has a huge weight of five ounces. the denomination is five crowns. The country of issue is the Isle of Man and it was issued on 6th May 2015. What is so rare about this coin is that it was produced in a limited number of only fifty. the coin commemorates the penny black stamp. the condition is very good,