Boards
Remember this 50p?
http://upload.wikimedia.org/wikipedia/en/4/46/British_fifty_pence_coin_1983_EEC.JPG
Actually it came out in 1973. I used to get these all the time and now I finally know it existed to commemorate us entering the EEC.
http://en.wikipedia.org/wiki/Fifty_pence_(British_decimal_coin)