A Very Old Coin!

Just today, I was looking for some change in a piggy bank and I realised one of the coins I had wasn't one that is in circulation.

It's a Florin (2 shillings) from 1931 and is composed of 50% Silver, 40% Copper, 5% Nickel, and 5% Zinc. It was replaced by the 10 pence coin after the system was decimalised in 1971.