Manufactured in ten different variations in the 1850s and 1860s. Less than 12,000 are estimated to have been manufactured in this configuration. It has a post front sight, "E. WHITNEY/N. HAVEN" on the top of the barrel, a ball type loading lever catch, and top strap groove rear sight. The serial number "3580" is found on the cylinder pin, barrel, loading lever and right grip panel.

Very good plus. The barrel retains nearly 25% original blue finish, otherwise the revolver has a smooth brown-gray patina and some minor pitting. The grips are also very good with a minor surface chip missing near the bottom and a number of minor dings and scratches. Mechanically excellent.