BEAUTIFUL ANTIQUE KERBY & DAVIDSON MAKERS, SQUARE RULER, WOOD AND BRASS

Description

This is a very nice, Kerby and Davidson square rule estimated late 1890's to early 1900's made in NY. It is all wood with brass elements.
It is 1' x 2' and labeled with marks on both sides.  It has small cracks near the brass at the corners but is rock solid. Beautiful.
One sides looks to be standard inch measurements.
The other is marked thirds, 2 thirds, 8ths, 4ths, 16ths, and 12ths.  The tick marks are not a fixed distance apart but get more compact as they near the corner.
see also: Vintage tradesman square ruler tools brass craftsman