Watch List notes:

HANOVER. Victoria. 1837-1901. Pattern Silvered CU Halfcrown (33mm, 19.77 g, 12h). Dies by "PTB". Dated 1890. VICTORIA REGNIA DEI GRATIA ·, crowned and veiled bust left / · BRITANNIAR : : REG · DEI · ·GRAT : FID : DEF · (lis) 1890 (lis) ·, four coats of arms divided by crowned scepter; across center, MODEL 1/2 CROWN. Bull 2811 (this coin illustrated, weight incorrectly listed with for 2812); ESC 745A. In NGC encapsulation 5916405-002 graded MS 65. Lightly toned with underlying luster. Extremely rare.

Ex C. Adams (Spink 177, 1 December 2005), lot 738.