Dietzen Binary Slide Rule  1931Dietzen Binary Slide Rule  1931Dietzen Binary Slide Rule  1931Dietzen Binary Slide Rule  1931Dietzen Binary Slide Rule  1931Dietzen Binary Slide Rule  1931

Binary slide rule made by Dietzen. Made in U.S.A., copyrighted 1931, 21.1 cm in diameter. Very good, like new condition.

Item ID: 091075

Dietzen Binary Slide Rule 1931

$25 USD

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