Vintage Hoffritz Germany Map Measurement Tool Double Sided Opisometer With Case

Vintage West Germany Opisometer Map Measuring Tool w/Case

Vintage Hoffritz Map Measurer/Opisometer Map Distance Calculator W/Case Germany

Vintage Swiss? Opisometer / Curvimeter Map Rolling Measure DEPOSE H~C Works Fine

Vintage Hoffritz Germany Opisometer Map Measure Mileage Converter Drafting Tool

Vintage German Double-sided Opisometer Map Measuring Tool w/ Compass

Vintage Opisometer Drafting Tool Made in Germany Map Compass Measure Wheel

Vintage Hoffritz Germany Opisometer Map Measure Mileage Converter Drafting Tool