Sheryl - not sure what information it is you want. Gevelot and SFM (Société Française des Munitions). They made ammunition under both the Gevelot name and the SFM name. The factory was at Issy-Les-Moulineaux.
Your .380 was made by Deutsche Werke A.-G. of Germany, which was acquired c.1924 by the Gustav Geschow & Company, of Durlach, Germany.
Please check the date on your steel case S.F.M. 7.65 mm cartridge, and also confirm whether it is caliber 7.65 mm French Long or 7.65 Browning (.32 Auto). If 7.65 mm Browning, the date kind of throws me. These were made in steel case primarily in the first years following the end of WWII. My versions with the dated headstamp on steel cases are:
4 S.F.M. 46 GG - FMJ CN FMJ bullet, brass flat primer cup (“GG” as explained below).
1 S.F.M. 47 GG - FMJ GM RN bullet, brass, domed primer cup (the “GG” are in Monagram Style, back to back and intertwined, and stand for the old name of the factory, “Gevelot & Gaupillat,” used as the full name, according to a German ammo book I have, only from 1883-1884.
I have not seen a steel-case French .32 Auto Round that early, not a steel-case French 7.65 French Long cartridge with that style of dating or from S.F.M. that early. I do not collect dates in this caliber, but I am fairly cognizant when I see something unusual in a caliber I collect, and would have acquired such an early date, if available, or noted it if not, even if just to replace a higher date I had already.
Is it possible that your S.F.M Steel case round’s date is actually “3 46” as that would fit right in?