I’m learning more about Dave Tesch, who is unfortunately deceased. This is an example of his well-known 101 model. This one is ca. 1987, but I’m trying to learn more. The tubing is Columbus SL and SP. I will post some Tesch links and will write more if I can add something beyond the sources. Bonus point since a friend whose collection I envy really loves this. He always wanted a 101 though he had the S-22, which was fillet brazed. This thing is awesomely old school.