ID Needed

11mm Devisme?
cartridge L 26.4mm
bullet 11.5mm
rim 13.2mm
head 12.2
case L. 14.4

IMG_5033IMG_5034

How will you get an ID from this community?

what it seems to be. Great headstamp, but i can’t quite make out what it says at 6

I can’t make out the whole headstamp either?

Bte SGDG? Patent without guarantee of government

That does look like it Orange, thanks

Thanks guys.