15mm Pinfire Cartridge

Size: 15mm
Headstamp: 15
Manufacturer: SFM - Gevelot S. A., (Societe Francaise des Munitions) - Paris, France
Additional Info: My sample seems to be made rather poorly, The lead seems to be spilling over the side. I have seen others of this same cartridge that also seem poorly made with oddly cut cases and unlevel bullets.
picture of Gevelot S. A., (Societe Francaise des Munitions) pinfire cartridge
Picture of Gevelot S. A., (Societe Francaise des Munitions) headstamp