Special Catalogue and Price List of Instructive Mechanical, Optical and Electrical Toys
A 1902 trade catalogue issued by Gebrüder Bing of Nuremberg, listing mechanical, optical and electrical toys for wholesale buyers and retailers. Numbered halftone and engraved plates show stereoscopes on swing arms, twin-barrelled "Union" magic lanterns, and fitted cases of projection parts, rendered in heavy black with hard highlights — useful as catalogue-style apparatus silhouettes and numbered figure layouts.
