No. 118051, Brotherhood of Locomotive Firemen Official Standard
21-jewel Grade 999 18-size, radial damascened full plate adjusted movement signed "Official BLF Standard, Ball & Co., Cleveland O.", jewels in settings, bimetallic balance, overcoiled spring, swan's neck regulator with index on balance cock, stem wound, lever set, white enamel dial signed "BLF Standard, Ball & Co. Cleveland, O." with black arabic numerals, subsidiary seconds, blued hands, doubly glazed metal display case
52mm