I have what I believe are three disc primed or Karcher cartridges, as shown in the picture. The lack of headstamps would suggest they are not Karchers, yet the deep knurled cannelures just above the rims of the first two would suggest that they are Karchers. The first two cases are 7mm x 10.5mm and 10mm, respectively. I believe the third one is a flare; it is 45mm long, and has what appears to be a piece of dark brown paper folded over the mouth of the separate brass tube, the excess extending about 2mm down the tube and glued in place. I suspect the light knurl is intended to secure the tube in the 7.5mm x 9.5mm long case. Can anyone positively identify these?