Hey I found this in a box ive been going through. I recieved it from my father quite a few years back. Its missing the thumb part, I have no idea how it broke. and I havent been able to find anywhere to purchase this clip anywhere. Alls I know about it is it was made in the 70's and possibly still is produced. It was also made in pewter and/or stainless steel. If anyones has any information what so ever on it or where to purchase one please let me know. It would be greatly appreciated.