- $305.51 GBP 1940's NAUTICAL MEMORABILIA CASED PARALLEL RULE, TEAK WOOD & BRASS, ROORKEE
- $18.00 GBP Vintage Capt. Field's Parallel Rule - made for Captain O.M. Watts Ltd london
- $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