Description

This is a Hemmi P253 slide rule from the Vectolog series, made by the Japanese slide rule maker Hemmi.

The P253 is a duplex slide rule with calculating scales on both the front and the back, introduced in 1961.

It has an all-plastic body and is described as the all-plastic version of Hemmi model 264.

The front carries LL3, LL2, DF, CF, CIF, CI, C, D, L and LL1 scales, with folded scales at √10, while the back has K, A, B, TI2, TI1, SI, D and DI scales.

Its listed size is 250 x 41 x 5 mm, and its trigonometric TI scales are divided in 1/12 degree steps.


100% Authentic from Japan
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Shipping

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