Watch List notes:

(x) Edward IV, first reign (1461-70), Half-Ryal, class VIa, 3.81g, m.m. sun, e | dward di gra rex ang | z franc, saltire stops, king with sword and shield facing in ship, rev. domine ne in fvrore tvo argvas me, single and double trefoil stops, rose upon a radiate sun over royal cross (Schneider I, 382; Stewartby VI; N.1554; S.1959), a 'found' coin with resultant surface 'rashing' and an edge crack at 10 o'clock, otherwise good fine, very rare, only three other Half-Ryals known with this mintmark on obverse and reverse.
Provenance:
Lord Stewartby, part III, Spink 239, 26 September 2016, lot 957 (via Senior, February 1998)
Lockett, part X {English IV}, Glendining, 26-27 April 1960, lot 4020 - "sea worn, very good, very rare" - £7.10.0
P Carlyon-Britton, collection of Hammered Gold offered through SCMB, c.1937
Estimate: £1200 - £1500