Patent model for wood blocks for engraving

Setchell, George C. · ca 1878

This patent model demonstrates an invention for a method of reusing engraved boxwood blocks by shaving down the engraved surface and gluing the shaved block between two pieces of a cheaper wood; the invention was granted patent number 203856. This sandwich was then cut through the middle to give two new blocks, each with a thin face of boxwood.