Manufactured form 1870 to 1890. Standard two line Hartford barrel address flanked by Maltese crosses with "No. 1" at the breech. Matching numbers on barrel and frame. Frame has the standard light scroll engraving with the grip area having checkered panels.

Very fine. The derringer retains 60% original nickel finish with the balance a smooth gray patina with some minor flaking. The markings and engraving are crisp and clear. Mechanically fine.