Light coinage, Groat, London, type III, mm. cross pattée, annulet to left, pellet to right of crown, tressure of nine arches, slipped trefoil on breast and after posvi, 3.35g/11h (Walters, NC 1905, pl. xiii, i, this coin; N 1359b; S 1728).  Extremely rare. Ex John Atkinson, Provenance: A. Durlacher Collection, Sotheby Auction, 20-3 March 1899, lot 54; F.A. Walters Collection, Part II, Sotheby Auction, 24-7 October 1932, lot 239; R.C. Lockett Collection, Part IV, Glendining Auction, 26-7 April 1960, lot 3999; Clonterbrook Trust [G.D. Lockett] Collection, Glendining Auction, 7 June 1974, lot 91. Images courtesy of DNW.