A very nice 9″ steel wing divider caliper manufactured by W. Schollhorn Co from New Haven, CT. There is Oct 17 1905 Pat mark and Dec 5 1905 as the manufacture date. It measures 8 3/4″ inches long with the screw to adjust dividers. This will make a great addition to any vintage tools collection.
This fine tool is available for pick up in west Toronto or can be shipped across Canada and US.