Recent content by TrainThek

Thank you RTM! This is exactly the knife I have. Later today I'm going to take it apart and post pictures. My theory is, the knife was proven very good, but too expensive to produce, therefore not marketable. Years later X-acto simplified the concept that lead to the development of the Gripster...

I'm new here, not a collector, but fascinated about tool history. I was working about 50 years in the woodworking industry and as a hobby used to make fine models, so a bit (or more) familiar with a wide variety of tools. Now, a few days ago, picked up an unknown X-acto knife that -based on my...