Watch List notes:

Isle of Man Coin and Stamp set 1990 170th Anniversary of the Penny black (this set issued in 2010) comprising 1/25th Crown 1990 Penny Black 1.24 grammes of 24 carat gold with pearl black finish, along with Penny Black stamp with T and J plate letters, in the London Mint Office box with certificate

Estimate: 35-45 GBP