Details
A mid 19th-Century electrum circular protractor,
signed Potter, Poultry London, with well divided scales, the shaped case with baize lining and original maker's trade label, with three brass hooks and eyes -- 13in. (33cm.) dia.
signed Potter, Poultry London, with well divided scales, the shaped case with baize lining and original maker's trade label, with three brass hooks and eyes -- 13in. (33cm.) dia.