Wndsn Horary Quadrant Telemeter (HqTM) 8x6x500q90i35 Acrylic polaris These wallets are hand-made

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Wndsn Horary Quadrant Telemeter (HqTM) 8x6x500q90i35 Acrylic polaris These wallets are hand-madeThe latest update (v. 24b). Changes are: sine dot grid added to Quadrant, piano scales added to Telemeter. A tool for education, makeshift navigation, and rangefinding, the double sided Wndsn Horary Quadrant Telemeter enables you to do more than merely guessing distances. It lets you measure angular size and compute distance, height or depth of object, altitude, or elevation, it allows computation of sine, cosine, and tangent for a given angle and

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