Posted 9 years ago
Backroadfi…
(1 item)
Can anyone tell what this is used for? It is a 1 inch clear glass 18 X 12 inches. With scored lines 1/2 inch apart across the face of the glass. It is in a wooden box with felt under the glass with a wooden top. Came from a tool auction, was said to be some precision tool. It also has printed on the end of glass - Accuracy .0005. Very curious as to what this was used for. Thanks for any assistance.
You lost me !!! Ive no idea !! Printing ???
I'm wondering if it wasn't from a tool makers workshop. I remember my partners work had a lab for testing flatness and tolerances of precision dies etc and they had flat plates and light beams to do it. I don't actually recall anything like this though.