No. 8731, Official RR Standard, for Marcy & Co., Indianapolis.
17-jewel Grade 938 18-size, concentric damascened full plate adjusted movement signed "Official RR Standard, Marcy & Co., Indianapolis.", jewels in settings, bimetallic balance, overcoiled spring, swan's neck regulator with index on balance cock, stem wound, lever set, white enamel dial signed "Official RR Standard, Ball Watch Co., Cleveland." with black arabic numerals, subsidiary seconds, blued Ball patent pierced arrow hands, later Keystone metal open face case with chased bezels and engraved with a locomotive
55mm