I had heard that Frank had died, but just found this site. He was a good friend of my uncle, Jim Fischer, when Frank was a fireman in Tampa, just starting to make knives in his garage. My uncle had Frank's serial number 2, and I have his serial number 17. Both are largish hunting knives in leather sheaths.
I saw someone had posted about Frank starting in the early 1970s, but both these knives were made in the late 1960s, around 1968. I took it back to him once, after he let me know that he could put his maker's mark on it and had him do so. He offered to change the handle but I kept the stacked leather. I used it out hunting once or twice, but mainly its been in a drawer for the last 40 years. Glad to say its in the same condition it was the day I got it. Seems likeI paid around $50 or so, which was a ton for a teacher making $3000 year.
Frank was a nice guy and a hell of a knife maker.
bil