Vintage 1950's C-Thru Ruler Co. Pocket Slide Rule No. 27 Complete Package For Sale -

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Vintage 1950's C-Thru Ruler Co. Pocket Slide Rule No. 27 Complete Package:
$9.95

Vintage 1950's C-Thru Ruler CompanyPocket Slide Rule No. 27Complete package.
Sheet plastic slide rule, instruction sheet and original envelope.
Front Scale : A [ 5in, B,CI, C, 12.5cm ] D
Back Scale : S, L, T
Well: Units Equivalants
Back Slide: Decimal Equivalents
Made in Hartford, Connecticut, USASee photos.
I ship promptly.

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