| Sub-Type | Rulers |
|---|---|
| Type | Engineering/ Surveying |
| Material | Brass |
Check the listing for details. Ebony & Brass Parallel Rulers Slide Ruler Nautical Navigation. Condition: Used. Listed at 20.30 USD. This ebony and brass parallel ruler is a must-have for any collector of scientific instruments. With its sturdy brass material, it is perfect for use in engineering and surveying tasks. The ruler also features a sleek and elegant design, making it a great addition to any collection. The parallel ruler is ideal for measuring distances on maps and charts, making it a valuable tool for nautical navigation. Its ebony material provides a classic look that will never go out of style, while the brass accents add a touch of sophistication. This ruler is a great investment for anyone who loves collecting unique and functional pieces.
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