Vintage German Opisometer Map Measurer Drafting Tool Inch to Foot 2-Sided

Vintage Map Measurer - Inch To Foot Opisometer, Germany, 2 Sided Measuring Tool

Vintage Western German Opisometer Nautical Map Inch Counting Measuring Tool

Vintage German Opisometer Map Measurer with Inch & Foot Scales

Vintage 2-Sided German Made Opisometer Map Measurer in Box - Nautical, Drafting

Vintage Map Measurer, Inch To Foot Opisometer, Germany,Two Sided Measuring Tool

Vintage German Double Sided Opisometer Map Measuring Tool Inches To Feet Works