Multiscale Products Aerial Photo Chain Scale

Aerial Photo Chain Scale Excellent for foresters, surveyors and others wishing to read aerial photos and maps in chains. White vinyl. Measures 6-3/8˝L x 1-1/4˝W. Graduated on both sides with the following scales: Scale Reads directly in: 1: 12,000 (1˝ = 15 chains) Chains 1: 15,840 (1˝ = 20 chains) Chains 1: 20,000 (1˝ = 25 chains) Chains Inches Inches to 10ths