| Country of Origin | United States |
|---|
Check the listing for details. Vtg 1940s Triangulator Slide Chart + Instructions "Makes Trigonometry Easier". Condition: Used, Made in United States. Listed at 20.75 USD. This is a 1940'2 Triangulator that helps "Make Trigonometry Easy" with instruction manual. Please review pictures for some wear on one side of the case, but the other side is in pretty good shape. The actual slide is in very good shape.
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