Watch List notes:

British Coins, Elizabeth II, two new pence, 1980, struck in copper-nickel, as normal coinage with bust r., by Arnold Machin, rev. NEW PENCE, value below plumes(cf S.C1), extremely fine and very rare
Sold with a letter (21.02.2018) from the Royal Mint, stating that 'an error in production whereby a cupro-nickel blank, most probably originally intended for one of the many overseas coinages ... appears to have been struck between 2p dies'
(80-120 GBP)