This is an original example of a British contract Greene patent carbine. The top of the receiver is marked "GREENE'S PATENT / JUNE 27. 1854", the lock plate is marked "MASS ARMS CO. / CHICOPEE FALLS / U.S.A. 1856" next to a large British Crown over "V x R", and the cap cover is marked "MAYNARD'S PATENT/ SEP. 22. 1845". The left side of the barrel has a double "British Broad Arrow" proof with a letter "S". The top of the barrel breech and frame have a British Crown over "A/ 2" and "A/ 5", respectively. It has the correct iron patch box on the right side of the buttstock with a small "U.S." stamped on the left side of the rear upper corner of the buttstock. On the underside of the buttstock directly behind the trigger guard are several British Crown acceptance proofs. Included with the carbine is a vintage cap tape.

Very fine, with approximately 70% of the slightly faded original blue finish on the barrel. A brown patina is forming on the barrel, mixed in color with some mild spotting and handling marks. The frame is showing the start of a smooth silver patina around the edges, with approximately 75% bright, vivid colors concentrated in the center and in the protected areas. Stock is fine as repaired, with a mended crack on the right side of the wrist and scattered dents and scratches. Mechanically excellent.