Vintage Opisometer Drafting Tool Made in Germany Map Compass Measure Wheel

Vintage DIETZGEN Opisometer, Swiss 1/8” Scale Map Plan Measuring Drafting Tool

ASI Opisometer Curvimeter Map Measuring Tool Swiss Made Vintage Drafting Planner

Vintage Hoffritz Germany Opisometer Map Measure Mileage Converter Drafting Tool

Alvin 1114 Swiss Rolling Opisometer Map Measuring Scale 1/8 Vintage with Case

Rare Vintage K&E Keuffel & Esser Map Measure Tool 62 0320 1745 + Box Swiss Made

Vintage Allen No. 1114 Measuring Map Drafting Rolling Tool Made in Switzerland

Vintage Swiss Made Opisometer Drafting Map Scale Measurement Rolling Wheel Tool