Vintage Pickett Dial Rule Circular Slide Rule 101-C in Leather Case 1958 for Sale

Vintage Pickett Dial Rule Circular Slide Rule 101-C in Leather Case 1958 For Sale

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Vintage Pickett Dial Rule Circular Slide Rule 101-C in Leather Case 1958:
$75.00

This yellow aluminum circular slide rule has three clear plastic indicators, one blank. The other indicator on the front is marked in red to denote the C, CI, A, AF, L, FA, LL2, LL1, DS, DT, and M scales. The indicator on the back is marked in red to denote the C, S,ST, and T scales. A ring of numbers under the scales on the back permits conversions from fractions to decimals.

The center of the front is marked: CIRCULAR SLIDE RULE – dial rule (/) PICKETT. The center of the back is marked: dial rule (/) NO 101-C. A triangular Pickett logo, of the form used between 1950 and 1958, appears at the bottom of the center; CHICAGO is printed below the logo.

Manufactured by Pickett & Eckel, a slide rule manufacturer based in Chicago and Alhambra, Calif.,