Case, for 10-inch brass circular protractor
Case for 10-inch brass circular protractor by Ramsden
Ten-inch brass circular protractor by Ramsden in mahogany case, 10 1/4" x 10 1/4" x 1", divided to 1/2 degrees, reading by vernier to one minute, engraved "Ramsden, London", and "R.S.61 ", paper label on lid, "Royal Society 61"