An answer to Othias C&Rsenal

in response to this: https://youtu.be/bA8PolsHRJk

Note: additional info: there was a Norwegian order of these. See this https://www.reddit.com/r/guns/comments/7xa3b8/norwegian_m6498_lefaucheux_pinfire_revolver_with/
Note the addition of a top strap.

2nd note: the letters on top: BR TE SGDG A Seem to mean:

Breveté Sans Garantie Du Gouvernement which means: patent without government guarantees)
Breveté SGDG was a French type of patent that ceased to exist in 1968.