A selection of my old style test inducators,
I'm not sure if the Finder indicator is actually for measuring, seems less than quality.
The Lufkin I really like, simple but accurate. Same with the Ideal tool co. But made even simpler.
The double ended one is kinda unique. Made by H Koch New York, It has a plunger on one end, and a lever on the other end. The cover slides off to reveal the working bits. Patent July 17 1906 It needs a new spring and its missing a part of the lever mechanism.
Then is the Starrett model 64.
I'm not sure if the Finder indicator is actually for measuring, seems less than quality.
The Lufkin I really like, simple but accurate. Same with the Ideal tool co. But made even simpler.
The double ended one is kinda unique. Made by H Koch New York, It has a plunger on one end, and a lever on the other end. The cover slides off to reveal the working bits. Patent July 17 1906 It needs a new spring and its missing a part of the lever mechanism.
Then is the Starrett model 64.