Engraving. Casserole for motorcycle

Engraving on the lid of the Dnepr motorcycle filter. The lid is made of an aluminum food pan. Copper plating with copper pendant. Galvanic method. The engraving was carried out by a drill. Photo with which the engraving was made - a historical photo "On the conveyor of the Kiev motorcycle factory, 1953". Original photo history.wikire...
The drawing on the metal was painted with a special paint for aluminum.