The Francis Bartlett Collection of British Groats
Henry VI (First reign, 1422-1461), Rosette-Mascle/Annulet-Trefoil issue mule, Groat, Calais, mm. cross IIIa/V, henric di gra rex angl z franc, mascle after rex, rev. posvi devm adivtore mevm; villa calisie, trefoil after posvi, annulet below cali, e in devm over i, 3.67g/9h (Stewartby p.324, IIb/Id; Whitton 23/14; Buck p.65, this coin illustrated; N 1446/27; S 1859/54). Sometime lightly cleaned, otherwise very fine with a strong portrait and all distinguishing marks clear, extremely rare £400-£500
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Described as 'unique' by the late Ivan Buck