12 gauge French St. Etienne proofed Guild made shotgun, unique features.

[danman65]

I just acquired a 12 gauge St. Etienne proofed guild sxs shotgun with unusual features and proof marks. The pictures posted are of the only gun found online with exactly the same features and proofs. My gun has ornate scrollwork and more checkering. It also, as pics. of this more plain gun, has no hammers, no breech break, and a top mounted sliding safety. Pictures of mine are forthcoming. Does anyone have info on this gun, maker, etc..
Thanks