Hello All!

I was directed here from the parker collector forums. I purchased this Ed. Kettner hammer drilling at a local gunstore and was wondering about its history and what cartridges would be safe to shoot through it? The gun seems to have been refinished at some point recently. I'm not sure if the reciever is suppose to be blued or case hardened. Bores are in OK shape but do have pitting.

[Linked Image from i.imgur.com]
[Linked Image from i.imgur.com]
[Linked Image from i.imgur.com]
[Linked Image from i.imgur.com]