- $28.50 GBP Parallel Rule Marine Navigation ebony brass 19th century nautical Antique
- $395.00 GBP Royal Navy Brass Rolling Ruler George Lee & Son, The Hard Portsmouth
- $17.99 GBP Antique 9 in. Wood and Brass Parallel Rule with Brass / Steel Dividers by W&HC
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- $45.00 GBP Vintage Royal Navy BHL Navigation Parallel Rolling Rule Maritime Marine Nautical
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