Stack its interesting that your US Pat, hollow rivoted, lanyard attachment has a right hand can opener. Mine has a left hand can opener. There is also a hollow riveted varition that is marked with US REG`D TM 1325473 w/right hand can opener. Lots of varitions over the years. The hunt continues
AHB, those japan tools look like they are in great shape. Does your hollow riveted tool have a right or left handed can opener on it? All great tools
I finally found the time ( ) to make the classic PST shot.. 12 unique PST's. Let me know what's missing (besides the hollow knurled screw)..