There is only one of these. Tom Mayo made it for me 15-20 years ago during my second assignment to Hawaii. He and I "negotiated" the final design. He asked questions then recommended improvements to my drawings. I listened, considered them carefully, then made some adjustments. Even cooler was this occurred on rifle ranges at Schofield Barracks during Schofield Rod and Gun Club recreational shooting.
I'm left handed, so this rides cross draw on right side with forward canted grip. Palm swells in the scales make for a very comfortable grip. Couldn't have been more happy with the results.
I thought tom mayo does make as folding knives.
great knife