Watch List notes:

BRITISH COINS, Charles I (1625-1649), Gold Triple-Unite of Three Pounds, 1642, Oxford mint, half-length crowned and armoured figure of King left holding sword and palm branch, Oxford plume in field behind, touching inner beaded circle at top and bottom, initial mark Oxford plume, legend reads CAROLVS: D: G. MAG: BRIT: FR: ET. HIB: REX, rev struck en médaille, Declaration inscription in three wavy lines, RELIG: PROT / LEG: ANG / LIBER: PAR, date in field below, three Oxford plumes and value between stops above, all within beaded circle that upper plume intrudes, colon stops in legend, initial mark four pellets at left, .:. EXVRGAT: DEVS: DISSIPENTVR: INIMICI, 27.12g (Beresford-Jones dies I/S1; Brooker 830; Schneider II-284; N 2381; S 2724). A good clear face to portrait and sword blade, a little double struck on King's body and back of head and a little weak on plume in field and on high points of lettering, otherwise good very fine with a light tone.
ex Duchess of Beaufort Collection, Christies, 1 May 1890

ex V J E Ryan Collection, Glendining's, 28-30 June 1950, lot 513, plate XV, sold for £98, most valuable of 1642 dated examples

ex Glenister Collection (part II), Spink auction 223, 26-27 March 2014, lot 1613

Estimate: £50,000-70,000