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Air.177, The A/F folder was originally designed and prototyped by me for Col. Rex Applegate. I told the Col. what I'd done with his fixed blade after the fact. This worked out well because Gerber Legendary Blades in Portland Oregon picked up the knife and is continuing to do a very good job producing it. I brought in Butch Vallotton (famous auto opener knife maker) to help with the production of the custom versions of this knife. Those A/F folders are marked "Harsey-Vallotton". They were made with 154CM Steel, titanium handle frames and micarta handle scales. This custom A/F was featured on the cover of the very first issue of Tactical Knives magazine. IMPORTANT NOTE: Butch brought the key to making this folder a successful design. I had the profile nailed down but not the configuration of the folding joint. This was tricky because we wanted to rotate the entire blade into the handle so we could sharpen the top edge and still have it protected when closed. The geometry of the joint determines if we can do this or not. Butch came up with the concept of using the thumb studs on the blade as the stop pins for both the open and closed position. This let us keep lot's of steel around the joint of the knife, that is we didn't have to make a deep relief notch at the base of the blade to rotate full closed around an internal stop pin like on conventional liner locks. Keeping my mouth shut and letting Butch work that out really paid off. I then produced the hardened steel (D-2) master drill pattern plates that let us reproduce this mechanism for the custom run of knives. Pleae note that many other people who have knife companies thought this was a fine idea and now use it in their knives. DON"T EVER LET MY WIFE FIND THIS OUT: Maybe once or twice during this project Butch called and needed my help on the A/F folders down at his shop just off the Umpqua River. The correct weather conditions seemed to match this call for help. Upon my arrival the problem would be solved fast and rest of the day might have been spent fishing for smallmouth bass. That was a long time ago, don't have time to pull that off now. Bill
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