A 14 Karat Yellow Gold Official Standard Railroad Open Face Pocket Watch, Ball Watch Co., Circa 1901 48.00 mm case diameter, white porcelain dial signed TRADE MARK OFFICIAL STANDARD BALL WATCH CO., CLEVELAND, black roman numerals with inner chapter ring calibrated to 24 units, blued steel spade hands, subdial for seconds at 6 o'clock, polished case back, swing case, stem wound and set 19 jewel nickel lever movement with damascened finish signed BALL WATCH CO. with the OFFICIAL STANDARD gold railroad stamp.Movement number: B0560599.Case back number: 5176652.