Re: Let's see some old French firearms:
Max, the 1874 officer's model is not as easy to find as the 1873 trooper's model. Congratulations.
If your revolver is military issue, it should have walnut grips, but sometimes these can look black after exposure to oil etc. I'm concerned about the thick rim ammo comment. I have seen a few French 1873 revolvers which were reamed out for .45 auto rim. I hope that did not happen to yours.