Hello everyone. I have this Leatherman in my drawer and I am not completely sure what it is. I do believe that it is a PST but I am not sure which model PST. It is completely stainless steel. On one side it has these markings: US REG TM 1325473 Letherman Tool Portland OR. The other side is the same but has a logo on it. The logo says: Cedar River Paper project, Phase 2. 1,000,000 Safe Floors 12/11/95. Ruler on the sides in inches and centimeters. Thanks for the help.