Watch List notes:

The Bernard Pearl Collection of Historical Medals | Marriage of William III of Orange to Mary, 1677, Pewter Medal, GVILH. II. D.G. PRIN. AVR. HOL. ET. WES. GV, armoured bust right, rev. MARIA. D.G. AVR. PRIN. NAT. DE. IORC., draped bust left, 42mm, 22.60g (MI i 568/235; Farquhar 1910/208), traces of tin pest with resultant roughness to surfaces, otherwise with hints of original surface, struck details a bolder very fine, rare.
Struck from at least two pairs of dies. Mary II (1662-94), elder daughter of James (II), Duke of York and Anne Hyde.
Estimate: £40 - £60