Support BladeForums! Paid memberships don't see ads! Something you don't see every day... Just got them. They are Track "Luger" folders from 1976-1977. Made by Track Knives of Whitefish, Montana. Top one is titanium frame, Serial Number 3 (only 3 were ever made). Bottom one is brass, Serial Number 30 (only 27 were made in brass & stag) At most, 70 others were made with wood handle inserts. Only 100 total at most (wood or stag) were made.