Sentence:  The superabundant wax is next removed, and two coats of paint laid over the entire surface of both plate and letters, the projecting letters being afterwards painted, by the aid of a <WSD>tamkin</WSD> or rubber, in a different colour or shade from that of the plate, the whole being finally coated with copal or caoutchouc varnish. 
Meaning of the word marked with <WSD> tags:  A tampion.