An oxidised and lacquered brass wing arm drawing protractor, signed F.Robson & Co., Newcastle-on-Tyne, with silvered scale and two verniers, tangent screw fine adjustment and clamp, in mahogany case -10¼in.wide; a lacquered brass circular protractor by Stanley in case with trade label; and a French clinometer 'on Clitographe Lefebvre' in case - 13¾in.wide (3)