This revolver is one of approximately 2,000 brass frame Walch revolvers manufactured in 1860-1862 by the New Haven Arms Company (then controlled by Oliver Winchester) in the same factory as the famous Henry rifles making them in essence a very early part of Winchester's history. The long cylinder contains two charges per chamber, and each chamber has two nipples. It has two hammers tripped by a single spur trigger. The barrel is marked "WALCH FIRE-ARMS CO. NEW-YORK/PAT'D. FEB. 8. 1859." The matching serial number is on the grips and grip frame. The cylinder has Birmingham, England, proofmarks.