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dry card compass
INSTRUMENTS - COMPASSES - DRY CARDE. S. Ritchie & Sons
USA, MA, Boston
overall: 5 7/8 x 5 7/8 x 3 1/4 in.
Boxed, dry card compass. Box has sliding lid, several missing pieces. Compass is marked: "E.S. Ritchie & Sons 69950 Boston, Dry Card." From Ratsey & Lapthorn collection.
1982.17.183