Yeah, Mike, pictures can be very uncommunicative. And sometimes, when they do talk to us, they don't always say what we want to hear, or we don't understand the message. One other thing about your description of the rear of the barrel. This came from the second site I gave you: "The Griswold & Gunnison revolvers are brass-framed copies of the Colt Navy 1851. They are also of the .36 calibre, and there are 2 different models, the one with a rounded top to the barrel lug, the other one with an octagon top. The barrel itself is always round." So the round top barrel lug doesn't rule it out. The date is still a problem. If you find out anything concrete let us know. Merry Christmas. Stan