A French cased brass and steel Miner's compass, Protractor and Plumb line by H. Morin, Rue Dulong, Paris, late 19th/early 20th century, comprising a brass cased compass, housed in a gimballed frame, together with a hanging protractor with a plumb line and bob and adjustment keys, housed in a fitted case, the compass and case signed H. Morin / Rue Dulong / Paris, the compass 11.5 cm diameter