Thanks Roy. Interesting information from all that have posted. Keep it coming if you have more to share. The 12 Rue De Ponthieu a Paris Arrq. address is found on the rib and N. Guyot A Paris marked on the action sides, other than those markings and the provisional proof marks previously mentioned, the gun is devoid of any other markings on the barrels and 653 is marked on the action flats.

It's a scalloped boxlock 16 ga, with minimal engraving.

Cameron Hughes