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Ruler : Flight Lieutenant E L Bayly, RAAF
Technology
Maker: Charles Bruning Co.
Black painted aluminium ruler for use with aircraft protractor. The ruler is made by 'CHARLES BRUNING CO.' and is marked in inches from 0 to 18 along both edges. There is an 'S' shaped wedge plate fit...REL23814.001
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US Navy aircraft protractor Mk III B: Flight Lieutenant E L Bayly, RAAF
Technology
US Navy aircraft protractor Mk III B. The protractor consists of two pivoting plotting arms with steel belts to maintain orientation, and a compass dial marked with degrees. It is contained in the ori...REL23814