I recently purchased a couple of NOS Bokers but can't find any info. The large ones (I bought 2 identical) are over 7 inches open. They have black jigged scales that appear to be derlin. Nickle bolsters on the blade end only. The blades are marked Boker Solingen Germany Inox. They look like Hunter Monos. The part I'm having trouble with is the medallion which is marked P.A.S. I can't find any reference to the medallion. I also purchased a smaller version that is identical except smaller. It has unmarked blades but does have the P.A.S. medallion. All three were in a box with a bunch of other Boker Solingen and Boker USA knives all from the 1970's All three are unused as new but no boxes. Anyone have any ideas?