细节
A brass dumpy level
by Stanley No. 611054, with rack and pinion focusing, ray shade, graduated bubble level, on three-screw tripod attachment, in mahogany case 15in. (38.1cm.) wide
by Stanley No. 611054, with rack and pinion focusing, ray shade, graduated bubble level, on three-screw tripod attachment, in mahogany case 15in. (38.1cm.) wide