I have contacted C&H, they are the ones who "dated" the gun for me. The cost of the certificate is about $75. I might order one in the future. They were very helpful and seemed genuinely interested in the project. I'm not sure if the gun is a "Avant Tout" or not, I never asked, and I'm not sure if its a self opener, I'm thinking its not although it is easy to open. The ejector system on this Coggie is unlike any I have ever owned before. The entire mechanism is located inside a "box" underneath the barrels, The only ejector parts on the forend wood are the "kickers". It works flawlessly and really throws the spent hulls. Thanks again for all the nice comments.
Hansli,
If you are thinking about doing a restoration, DO IT. It is a very fun and rewarding thing. 10x better than buying a new gun with no "soul".
Dustin