No. B0542252, Brotherhood of Locomotive Firemen Official Standard
19-jewel 16-size concentric damascened divided ¾ plate adjusted movement, signed "Ball Watch Co., Cleveland, O.", gilt BLF medallion, gold center wheel, jewels in gold settings, bimetallic balance, overcoiled spring, micrometer regulator, lever set, white enamel dial signed "BLF Standard, Ball & Co., Cleveland", arabic chapters, subsidiary seconds, blued hands, scroll engraved screw back Keystone gold filled Ball Model open face case
51.5mm