Manufactured from 1861 to 1862, the Center Hammer Army was an improvement over Allen & Wheelock's sidehammer revolvers. It is believed that a very small group of this type of revolver was issued to the 2nd and 3rd regiments of Michigan cavalry during the Civil War and 536 revolvers were bought by the U.S. government in 1861. The left barrel flat is stamped with the two line address/patent dates (1857, 1858). The assembly number "7" is stamped on both grips, trigger guard and cylinder. The numbers on these revolvers were merely assembly numbers that do not equate to sequential serial numbering.

Fine. The revolver retains 20% plus of the bright original blue finish in and around the protected areas with the balance a smooth brown-gray patina. The trigger guard retains traces of original case colors blended with a smooth dove gray patina. The grips are fine with some scattered minor handling marks and retaining most of the varnish. Mechanically fine.