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TITLE CAPT FIELDS IMPROVED PARALLEL
DESCRIPTION Stamped British Made. Capt Fields Improved Parallel, this navigators parallel ruler is made from boxwood and brass (still with its original laquer.) One of its outer edges is divided into degrees like a protractor, with its opposite edge divided into points of the compass. This was an important development since it made it easier to read off the bearing of a line than with a plain parallel rule which would have had to be moved across the chart to the nearest compass diagram.
DATE c 1900 - 1919
PRICE £78-
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STOCK NO. 19607
DIMENSIONS
cm
  46 x 7.5
inches
  18 x 3
 
 
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