Special Features:

Vplastic disc, 2 sheets laminated, 0.020 in.Thk o/a, 13.000 in.Dia; scale reads clockwise 0 to 6400 with divisions of 100 ea; disc p/n 11736209; arm assembly p/n 11736209; arm assembly p/n 11746805; grid p/n 11746803; mounted on panel p/n 11736205

Properties:

A specifically designed, hand held device, with a plane surface inscribed with mathematical data, and a pivoted rotating disk inscribed with millimeter scales around its periphery. It is used to determine the unknown distance of a target in relation to the known positions of the observer and the gun location.