Aluminum Architects Scale for architectural drawings 2200 series by Alvin made of high quality anodized aluminum scale with a large profile, solid core and tapered edges. It is printed with black graduations, and is supplied in a hard plastic case.
Graduations: 3/32, 3/16, 1/8, ¼, ½, 1, 3/8, ¾, 1 ½, 3” to the foot;
with one edge calibrated to the 16ths