11 x 59mmR Gras, appears to be a French headstamp but is difficult to read.
it reads ART 1-84 VIS N-F, and indicates a new case construction N F is Nouveau Form. I think ART and the VIS for Vincennes is well known.
Yes: ART(illerie) Parc de VI(ncenne(S)
In European countries, the Artillery Service usually ran all the Ordnance services…Guns, Shells, Small Arms, Ammunition, and vehicles, etc.
They also ran the first real Engineering Schools for Officers,
back in the 1700s.