Scientific instrument similar to a pantograph, for making ge - Lot 498

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Lot n° 498
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Estimation :
50 - 80 EUR
Scientific instrument similar to a pantograph, for making ge - Lot 498
Scientific instrument similar to a pantograph, for making geometric transformations of distance (homothety), by adjusting the fraction of the transformation: 1/2, 1/3, 1/4, 1/5,...up to 1/12. In original leather case trimmed with silk and green velvet. Length: 17 cm. Case dimensions: 2 x 18 x 4 cm.
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