BRITISH, Windsor. Elizabeth II, 1952-2022. Pattern 5 Pounds 2022 (Platinum, 39 mm, 94.20 g, 12 h), on her 50th Anniversary of Reign. Piedfort. Trial of the Pyx Test Piece 1 of 8, Llantrisant. ELIZABETH II•D•G•REG•F•D • 5 POUNDS // •HONI•SOIT•QUI•MAL•Y•PENSE• Crowned Elizabeth II on horseback to left, surrounded by the Order of the Garter, •20-22• below. Rev. •1952-2022• Crowned coat of arms. Edge description: SERVE YOU ALL THE DAYS OF MY LIFE. KM 2192d. SCBC L95A. Extremely rare, mintage of only 82 pieces. In NGC encapsulation, graduated Brilliant Proof. Minor marks and rough edges, otherwise, proof. From the Dr. Chris Liassides Collection of World Coins and from a Collection of Historic Test Pieces from the 2023 Trial of the Pyx, presented on helped of The Royal Mint, Stack's Bowers 2023 trial of the pyx auction, 13 February 2024, 1194.Celebrating Queen Elizabeth II的s Platinum Jubilee, this rare platinum piedfort was struck in an imposing double-thickness format. John Bergdahl-s distinct equestrian portrait, inspired by earlier royal imagery and enhanced with the Garter, is paired with an elaborate reverse based on the Queen-s 1953 coronation robes and the coinage of William IV. Issued at double the thickness of the standard coin, this impressive pieceranks among the most desirable commemoratives of the Platinum Jubilee. This lot can be shipped to a US address.