Five Simple Lenses in Case, c. 1850

.1: Set of five simple dissecting lenses of different powers, possibly by Ross. Three of the lenses have blackened cups and lacquered copper alloy reverses, whilst other two lenses have black coating and are engraved with their powers (1 " and 1/2"), the 1/2" power has a threaded collar on its reverse.

.2: Case with red leather coating and two swing clasps. Interior of case is lined with red velvet and has fittings to hold six lenses.