Lot 825. SINCONA BRITISH COLLECTION. GREAT BRITAIN. GEORGE IV. 1820-1830.  Pattern 2 Pounds 1825, London. Bare head. By William Wyon after Chantrey's model, reverse by Johann B. Merlen. Inscribed edge. 15.89 g. WR 226 (dieses Exemplar / this specimen). Von grösster Seltenheit. Nur 3-5 Exemplare geprägt / Of the highest rarity. Only 3-5 pieces struck. Feine Goldpatina / Nice gold toning. NGC PF63. (~€ 18'435/USD 21'980) From auction UBS 51, Basel, January 2001, lot 833. Finest certified by NGC.