[Numismatics] Twelve plates of English silver coins from the Norman conquest

to Henry the Eighth inclusive with a calculation of their respective values and short observation upon each plate, principally designer dor the use of young collectors and all dealers in silver. London, Robert Withy and John Ryall, 1756. iii, (1), a-aa pp. Engr. title page, 12 engraved plates on coins with explanatory text on facing page. Panelled leather, rebacked, blindstamped fleurons and orig. mor. letterpiece. Ticket on upper pastedown, small wormhole in upper margin of first half of the text, not affecting text or plates.
Added: Snelling's seventy-one plates of gold & silver coin with their weight, fineness & value. London, for H. Chapman, W. Collins and T. King, (1757-1800). Unpaged. 72 engr. ills. Halfcloth, marbled paper over boards, 8vo size. Binding rubbed, corners bumped, spine with some dam., trifle foxed. (total 2)