Picket Log-Log Speed Rule (Dual Base): Model N 600-ES
Accession Number: 2010.lej.35
A 5″ all-metal pocket slide rule, made of aluminum, with grooves on the slide, the special “Eye Saver” (ES) design with yellow background and black markings. The slide rule has a convex plastic cursor, frameless with nylon bars. This pocket slide rule was obtained with a sleek, sewed leather case. Scale: Front: LL1 (LL01), A, B, ST, T, S, C, D, DI, and K. Back: LL2 (LL02), DF, CF, Ln, L, CI, C, D, LL3 (LL03). Note :The scales within parentheses are present but not listed.
Primary Materials: Aluminum, Plastic
Markings: Old Inventory Number = 35.
Length = 15 cm; Width = 3.9 cm, Height = .8 cm.
Function: Facilitating calculations.
Condition: Item is in very good condition.
Pickett Inc., Santa Barabara, California, 93102
Date of Manufacture: c. 1964-1975