Elizabeth II 1983 8-coin UNC Martini Set with the 1983 New Pence mule error

Elizabeth II (1952-2022), Uncirculated quality Decimal coin Set, 1983, issued with the compliments of the "Martini Coin Collection Offer", therefore with the rare 1983 Two Pence "New Pence" muled reverse, card folder of all the decimal denominations dated 1983 from the newly issued One Pound coin, 50 Pence, 20 Pence, 10 Pence, 5 Pence, 2 Pence, One Pence and Halfpenny, all sealed on the central card page in clear plastic protection, all with the usual decimal designs for each denomination, the 2 Pence with error "NEW PENCE" reverse rather than the newly introduced "TWO PENCE" for 1983, the out and inner card covers with illustrations of the coins and explanatory notes, the rear inside cover branded at bottom right in linear frame as "The Great British 1983 Coin Collection / Presented by / Martini, M&R are registered Trade Marks / © M&R - Martini & Rossi Ltd 1983", also with Martini compliments slip and Royal Mint and Martini and Rossie invitation to join the Royal Mint Coin Club (S.US02 note p.150 - Two Pence see C2A). Brand new condition as issued, uncirculated, with excellent card folders and insert slips, as good as could be expected for a 40+ year old set and extremely rare.