.41 Rimfire. 2.5" barrel length. SN: 5763. Blued metal finish with brass frame mounting smooth walnut birdshead grips, German Silver front blade sight, and spur trigger. Single shot rotating barrel breechloading derringer with light spiral scroll engraved embellishments to frame and barrel flanks. Barrel flat address is nearly obliterated with only faint traces of the BROOKLYN, N.Y. marking visible.