Well cared for OM21 from Martin's Custom Shop where it is registered as completed in 1993. The serial number is 1992- 5247xx. It has scalloped bracing. The OM - Orchestra Model is the same size as the 000. The condition is very good plus. There is only one small ding at the upper edge of the headstock. It has bright gold Martin tuners. It is a 14 fret neck and a 25.4 inch scale. It will ship in its Martin case. Please review the pictures for further details.