Starr Arms Co. manufactured approximately 20,601 of these carbines during the Civil War. Features standard blade front and two-leaf rear sights, sling ring mounted on the left of the receiver, inspection initials "L.A.B" on the left of the breech and on top of the stock ahead of the buttplate tang, and a boxed script inspection cartouche stamped on the left wrist of the stock. Serial number "2637" on the left of the breech block, and matching numbered underneath the barrel.

Very good, with strong traces of original blue finish on the barrel underneath scattered moderate surface freckling with smooth brown patina on the balance, and mostly smooth gray and brown patina on the frame with patterns of much faded original case colors visible in protected areas, and some light flash pitting. Wood is fine as re-oiled, with scattered dents and scratches, a few cracks visible at the toe, and mostly defined edges. Mechanically excellent.