These derringers were introduced in 1870 and totaled around 48,000 produced. The top of the barrel has a rounded blade front sight and rare "COLT" in small block letters as seen only on the earliest "pregnant frame" derringers. The hammer is the early production "high" variant and it has the raised bolster on the forward bottom portion of the "bulbous" frame. The three-digit serial number, "507", is stamped on the left of the grip frame under the grip and on the bottom of the barrel. It is fitted with a pair of smooth rosewood grips. Included with this desirable derringer is a very rare, grey suede coin purse style case with a metal clasp top, perfect for protecting the little derringer while stashed away in a gentleman's coat pocket or lady's purse. Cases such as this are incredibly scarce today due to the materials they're made of. Provenance: The George S. Lewis Jr. Collection