As you already may have seen, your FAMEX isn't of french orign, but "FABRIQUE D'ALLEMAGNE" in WALD-SOLINGEN.
The manufacturer of FAMEX was E.+F. HÖRSTER.
FAMEX razors sometimes came with the BAGPIPER signs on blades and scales, wich also was a trademark of E.+F. HÖRSTER.
Attachment 86496
My own FAMEX doesn't have a manufacturer's No. but shows the HAMON script on the scales, who imported FAMEX to France.
Attachment 86493
Attachment 86494
Attachment 86495