Electric toy making for amateurs : including batteries, magnets, motors, miscellaneous toys and dynamo construction
An 1897 New York handbook by T. O'Conor Sloane, published by Munn, teaching amateurs to build electric toys, batteries, magnets, motors and dynamos. The pictures are small black-and-white line engravings: one shows a wire-mesh cylinder, the other a wooden box of loose toy parts seen from above, drawn with fine hatching that a designer could borrow for vintage technical diagrams or cross-hatched product illustration.

