Do not recall a mark with a soldier as on your gun.

Odd that 65 would be the SN, but I don't see another one anywhere else.

I've seen a lot of French doubles with 65MM chambers and no "normal" mark. According to Kennett, it was in effect from 1924-62; however, in the text of that article, he also states that it was an either-or thing--either the chamber length in MM or "normal" if 65MM. Since this one has the 65 stamp, that would mean "normal" was not required.

As for barrel weight, it's stamped on most (maybe all?) post-1924 Belgian guns, but I don't think it's often seen on French guns.