G P Strap 2 inch, 1950's dated - Omahas Army Navy Surplus
CS-1.1-Object-Oriented-Programming/Projects/Spaceman/words.txt at
Omahas Army Navy Military Surplus - Omahas Army Navy Surplus
LETHALIFE Military Protractor for Land Navigation
Products Archive - Omahas Army Navy Surplus
RM PRODUCTS Military Triangle Protractor : Industrial
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RM PRODUCTS Military Triangle Scale Protractor.
RM PRODUCTS Military Triangular Protractor Scale (Red)
RM PRODUCTS Military Triangle Protractor : Industrial