Marine Parallel Ruler With Brass Fittings Antique 19th Century.
A very nice example of an antique marine parallel rule with brass fittings, working perfectly. presented in very good antique condition with very minor age related wear. please refer to Photos.
Dimensions; closed 46 cm or 18 inches x 6.5 cm or 2.5 inches. Open 63 cm or 25 inches long. Weight 204 grams or 131 pennyweight.