- $290.91 GBP 1940's NAUTICAL MEMORABILIA CASED PARALLEL RULE, TEAK WOOD & BRASS, ROORKEE
- $12.00 GBP Vintage 18" Parallel Rule, Nautical Maritime in Mahogany & Brass
- $29.99 GBP VINTAGE CAPTAIN FIELD’S IMPROVED PARALLEL RULE 1944
- $18.00 GBP Vintage Capt. Field's Parallel Rule - made for Captain O.M. Watts Ltd london
- $29.99 GBP VINTAGE ASTON & MANDER NAUTICAL CAPTAIN FIELD’S IMPROVED PARALLEL RULE 1944
- $85.00 GBP Rare 1940s Maritime Nautical Parallel Rule by Kelvin Hughes
- $85.00 GBP Vintage Royal Navy BHL Navigation Parallel Rolling Rule Maritime Marine Nautical
- $45.00 GBP Vintage Royal Navy BHL Navigation Parallel Rolling Rule Maritime Marine Nautical
- $45.00 GBP Vintage Royal Navy Navigation Parallel Rolling Rule Maritime Marine Nautical