Collecting Military Compasses


RAF Astro compass MK II   6A/1174 2-H



An Astro (or star) Compass. Mk. II. Used on planes such as WWII-era  bombers to determine true heading from the stars (similar, sort of, to the way one would use a sextant at sea). I'm  told that these are still in use up north, where navigation by magnetic compass can get complicated.   A fascinating device, with spirit levels, adjustments for latitude, declination, etc. 

Contains Radium. (20.0 micro sievert/h)


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