Tell me more.
I tried to find Cody in The Illustrated Encyclopedia of Handguns by A. B. Zhuk, which has tons of obscure revolvers shown in line drawings, but to no avail.
A better description would help.
Is it a solid-frame revolver, or is it hinged at the front so the barrel assembly and cylinder all tip upward for ejecting empties and easier loading.
Or is it a single-action, resembling a Colt .45 like in the Westerns?
Any other markings on it, other than Cody and Chicopee, Mass?
Does it appear to be fairly new, or very old?
I'll try to help you if you can provide more info.