No.B0560776, Brotherhood of Locomotive Engineers Official Standard
19-jewel 16-size concentric damascened divided ¾ plate movement adjusted to 5 positions, signed "Ball Watch Co., Cleveland, O.", gilt BLE medallion, gold center wheel, jewels in gold settings, double roller escapement, bimetallic balance, overcoiled spring, micrometer regulator, lever set, white enamel dial signed "BLE Standard, Ball & Co., Cleveland", arabic chapters, subsidiary seconds, blued hands, screw back S. W. C. Co. 20-year open face case engraved with foliage
48mm