Elizabeth II, Diamond Jubilee, 2012, proof £1,000 '1 kilo' in gold, Jubilee portrait right, rev., full achievement of the Royal Arms, no. 20 of 21 issued, mint state, as issued, in capsule and in Royal Mint sweet chestnut cabinet with drawer containing certificates and keys, also in outer box of issue
(Estimate: 40000 - 60000 GBP)