Special Features:

Plastic, linear scale 10, equals 1.000 in.Ratio, 1/10 in.To 5.000 in.Range, 660 scale, 1.000 in.Equal 660 ft.Ratio 50 ft to 2800 ft range, 1320 scale, 1.000 in.Equal 1320 ft ratio, 400 ft.To 4800 ft range, mile scale 8.000 in.Equals i mile ratio, 1/8 mile to 1/2 mile range, area scale circle, 1 scale w/graduations, 0.1 acres to 3.0 acres range, square scale 1 w/graduations, 0.1 acres to 10.0 acres range, w/posket clip, o/a dim 5.125 in.Lg, 2.375 in.W, 0.032 in.Thk

Properties:

A thin, flat, rectangular shaped, transparent strip of plastic or other material with one or more edges graduated in units applicable for measuring distance. It is graduated in units for measuring land and for estimating acreage. It may or may not have clips for pocket carrying. Excludes scale, plotting; scale, drafting and rule (as modified).