| Primary Material | Metal & Glass |
|---|---|
| Country/Region of Origin | Germany |
| Original/Reproduction | Vintage Original |
| Features | With Case |
Check the listing for details. COMPASS Germany Opisometer NAUTICAL Kilometers Miles Map Measurer. (A). Listed at 30.25 USD. AI Overview +4 This item is a vintage German map measurer (also known as an opisometer or curvimeter), a navigational instrument used for measuring the length of curved lines on maps to determine real-world distances. Function: It features a small wheel at the bottom that is rolled along a route on a map, with the dial indicating the total distance traveled based on the map's scale. Design: Many of these tools were made in Germany and often included a compass on the reverse side. Features: The dial typically displays multiple scales, such as miles, kilometers, or nautical miles.