While looking at a picture of a box that was described as mixed 7.63 Mauser, I was intrigued by the two crimps securing the primers on three of the cartridges, as seen in the top left portion of the picture. One of them has what appears to be a ring crimp in addition to the two ‘punch’ crimps. The two without the ring look Japanese to me. Its also highly possible that not all of the cartridges are 7.63 Mauser. Is anyone familiar with these two punch primer crimps on pistol ammunition? Also, the poor quality of the photo makes it impossible to determine if there is a headstamp on these - does anyone know the headstamps on these, if any?