Quick, what is it?

I needed to identify a new firearm lately [not exactly new, but new to me]. What a challenge that was. The limited number of books I have did not help, and I was not having much success searching the Internet either.

So I relied on the good folks at www.canadiangunnutz.com and they kind enough to point me in the right direction.

This is what I was dealing with.

I will provide another hint; it's now a shotgun.

Still haven't figured it out. Here is an image that includes some proof marks:

It sure was a challenge, but sure enough the informed folks on the gunnutz forum figured it out. It is a Chassepot rifle converted to a 12 gauge shotgun in Belgium, as Liege. Pretty cool isn't it?
Apparently it is a black powder shotgun, so I don't know if I'll be shooting anytime soon, but you never know.. I have shotshell reloading equipment, and perhaps after some research, and a quick trip to the gunsmith [make sure it is safe], I might try it out.