878. Gunner's quadrant for a Howitzer.
















879. A plate from a Napco air brake:












880. Cork cutters or cork borers, used by pharmacists for cutting corks for bottle stoppers:
















881. Probably a dental press, used for compressing a mould.
















882. Signal light for use on the railroad.












883. Trough compass, used with surveyor's plane table.


























































Last week's set is seen below, click here to view the entire post:








More discussion and comments on these photos can be found at the newsgroup rec.puzzles.