References and image credits
Pages
Physical Component - Winterization: Canadian Armed Forces, "Canadian Army Manuel of Materiel: supply class 6675: draughting, surveying, and mapping instruments, 1965," Ottawa, Queen's Printer 1965.
Model Comparison: German Model; Russian Model.
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Images
Physical Component - Winterization: Military compass image taken from Canadian Armed Forces, "Canadian Army Manuel of Materiel: supply class 6675: draughting, surveying, and mapping instruments, 1965," Ottawa, Queen's Printer 1965.
Markings: Merchandise Marks Act image.
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Other
Geary, Don. Using a Map and Compass. Mechanicsburg, PA: Stackpole Books, 1995.