This Gallager carbine that was manufactured by Richardson & Overman of Philadelphia with a total production of about 15,700 in the 50 caliber. This is a single shot, breech loading percussion carbine with a walnut straight grip stock and a patch box. The lock is marked "MANUFACTD BY / RICHARDSON & OVERMAN / PHILADA" over the serial number directly behind the hammer and "GALLAGER'S PATENT / JULY 17TH 1860" to the rear. The front sight a fixed pinched blasé and the rear a folding leaf style. There is a saddle ring bar and ring mounted on the left stock wrist. The Gallager saw extensive service during the Civil War including cavalry regiments from Ohio, Tennessee and West Virginia.

Very good plus. The barrel has a crisp smooth brown patina and the receiver, buttplate, patch box and lock have a smooth mottled gray patina. There is some minor pitting on the patchbox. The stock is also very good with scattered minor pressure dents and dings and a visible cartouche. The markings are crisp and clear. Mechanically excellent.