WWII US Army Air Force Mark 3-B Aircraft Protractor withWooden Case & Instructions

WWII US Army Air Force Mark 3-B Aircraft Protractor w/Wooden Case & Instructions! This set is in great condition and seems complete except for the screws to mount it to the navigators table (if it came with those). This was used to plot the aircraft's course and bearing. This is a great piece, take a look at the photos!

Note: This item is heavy and large! The wooded case measures over 23 long.

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