English/metric converter

Venmark (Wellesley, MA) introduced a pocket English/metric converter that converts numbers by sliding the scale, aligning the known quantity in either English or metric units, and reading the corresponding value.

Pw 23670 Ven Wel M Aint 58

Twenty-nine different conversions, including length, area, mass and volume, are listed. The converter is available for $12.95, which includes shipping and handling.

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