Murray,
Besides the location of the stitching lines along the top of your holster flap, the belt loop on your holster does not seem very typical swiss either. Most swiss holster I have seen have two (2) loops with metal rivots on the bottom of each loop. Your holster has a single wide loop that is sewn both along the top and bottom...
Are there are maker stampings on the back that are visible ?
Regards,
Pete...