拍品描述： George III (1760-1820), Pattern Proof Guinea, 1763, by Richard Yeo, GEORGIVS • III • DEI • GRATIA •, second laureate bust right, top leaf to right of second stop, rev. • M • B • F • ET • H • REX • F • D • B • ET • L • D • S • R • I • A • T • ET • E •, crowned shield of arms, edge plain, 7.63g, 12h (Farey 1505; Waterbird 20 same dies; W&R 87 var.; Bull 745 [R7]), previously polished with resultant brightness to fields, yet no evidence of smoothing to plain edges despite the underweight flan, hints of reddish-orange peripheral tone to reverse legends, otherwise brilliant, a stupendous canon of Yeos approved currency design, the second example recorded from this newly discovered Waterbird obverse die, of the highest rarity thus