Reviewing this thread, something caught my attention. You said above that your Clement 5mm is serial number 8103. Does your pistol by any chance have a Siamese chakra marking on the rear gripstrap above the magazine catch?
The reason I ask is that I have recorded Clement 1903 pistols with serial numbers of 7664, 8080 and 8466, and they all have this marking on the rear gripstrap. I have noted no intervening examples. (By the way, any information about this marking would be appreciated. Is it a proof, an acceptance marking of some sort??? Am I referring to it as a "Chakra" correctly?)