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Pickett Microline 140-ES Duplex, Log Log Slide Rule

L.E. Jones

A 10″ slide rule made of molded plastic. It is perhaps one of the last models produced by Pickett in the special “eyesaver” format. The slide is grooved and has molded grips on its ends. The flat cursor is made of plastic; it slides over the plastic without the need of grooves or ridges. This slide rule comes in a black leather case and a cardboard box. Scales: Front: LL1 -0.01, K, A, B, S, ST, T, C, D, DI, LL1+0.01. Back: LL2-0.1, LL3-0.1, DF, CF, CIF, L, CI , C, D, LL2+0.1, LL3+1.0. Markings: Pickett Microline 140.

Old Addl Info – Includes: Pickett instruction manual for Log Log Slide Rules. Copyright 1953, leather case, and original cardboard box.

Accession Number: 2010.lej.26

Alternative Name:

Primary Materials: Plastic

Markings: Old Inventory Number = 26.

Dimensions (cm):

Length = 31 cm, Width = 6 cm, Height = .7 cm.

Function: Facilitating calculations.

Condition: Item is in very good condition.

Associated Instruments:


Pickett Inc., Santa Barabara, California, 93102

Date of Manufacture: c. 1964-1975


Additional Information and References:

Historical Notes: