Only thing I could find searching the web was this. Not sure what T. K. G. stands for. Hope it helps a little. If I come across more info I'll let you know. Take care.
- JT1991
1. British style can opener sold by Highlander Adventure Equipment (purchased from store in Britain)
2. Chinese version of British style can opener
3. East German can opener. Stamped on side "Standard EVP 0.1C"
4. Belgian can opener

5. US can opener, similar to p38
6. US p38 can opener, stamped on side "MIL-J-0837"
7. Chinese version of p51, sold by Stansport as G.I. Style Can Opener
8. US p51 can opener, stamped on side "US SHELBY CO"
9. US p51 can opener, stamped on side "US CLARK METAL PROD"
10. US p38 can opener, stamped on side "US SHELBY CO"
11. US p38 can opener, stamped on side "US SPEAKER"
http://www.georgia-outfitters.com/page52.shtml
