Gervase Spencer (British, circa 1715-1763)
Nathaniel Ryder, 1st Baron Harrowby (17351803), wearing blue coat and waistcoat, white stock and lace cravat, his powdered wig worn en queue and tied with a black ribbon bow.
Enamel, signed on the obverse with initials and dated GS/ 17*8, gold frame with border of paste rubies, the reverse engraved Nathaniel Ryder/ 1st Lord Harrowby.
Oval, 30mm (1 3/16in) high
Provenance: Sotheby's, 26 November 1942, lot 120, sold to S.H.R. Harris for £15