A picker I know brought in a baby Ames cannon, a miniature bronze 6 pdr. The only marks are Ames (and remainder of the usual Chicopee marks) on one trunnion and "1861" on the other. No other marks, including muzzle and breech, which I checked carefully. It is the smallest scaled-down 6-pdr. M1861 I've seen on the market (the smallest I've ever seen are a pair at the USNA museum, I think maybe two feet long each, from the ship IRIS.) I've seen a number of authentic "4 pounder" and "3 pounder" Ames scaled-down 6 pounders, but this one is smaller yet, 2.7-odd inch bore, and only 36" long, so it is probably a 2 1/2 pounder? A 3 pdr. is 2.9 inches, for comparison. It came mounted on a nice repro ship's carriage made within past 30 years or so. The vent has no copper bouch as do the full-sized M1841's, and the vent is drilled at an acute angle in the direction of the muzzle, noticeably more acute than on CW-era military muzzle-loading cannons. Don't even have a photo yet, will work on that soon. I had seen this same cannon when it was owned by a friend in Baltimore about 30 years ago, but he's been dead for over 15 years and I had lost track of it. The picker bought it from that man's son who had moved far away from Baltimore after he got out of school. I am sure this piece has no US military or naval connection-must have been a private order.