Photo by David Friend Productions, San Diego, California

SLIDE RULE MECHANICAL PENCILS

09-036A. American, circa 1960, signed on the end "Ruxton MULTI-VIDER, Pat Pending, Made in U.S.A." Made of hard white plastic, with nickel plated brass fittings, 6 1/8" long overall x 7/16" diameter. The body is split in half lengthwise, with 2 sets of C scales engraved on one half and 2 sets of D scales engraved on the other half; the body then slides apart to allow the slide rule scales to be used. This well made slide rule mechanical pencil is in good overall condition.

Price...................................................$150

09-036B. American, circa 1960, signed "Monroe".

Price...................................................$125


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