GREAT BRITAIN, British Coins, England, George II: Proof Gold Guinea, 1729, by John Croker, Obv second young laureate head left, GEORGIVS.II . DEI.GRATIA., toothed border both sides, Rev struck en medaille, crowned narrower quartered shield of arms, date either side of crown, .M.B.F.ET.H.REX.F.D.B.ET.L.D.S.R.I.A.T.ET.E., edge plain and striated, 8.20g (WR 73, R5). Lightly toned, traces of light polishing in the obverse field, small scratch in field by nose and small dig by throat, the reverse more heavily toned and attractive, extremely rare. Estimate: US$15,000-20,000