Posted 10 years ago
This brass item is just over 6 inches long. It has fractions along both sides of the part with the opening in the middle. The piece in the middle slides along and has a line which I assume should match certain fractions. It looks like it should open up somehow, but I don't want to force it and break it. It was with my grandfather's desk items from when he worked at Fellows Gearshaper in Springfield, VT.