Pickett N300-T Log-Log Pocket Slide Rule New Old Stock Unused Condition

Pickett N300-T Log Log Pocket Duplex Made in USA - Modern Logo, Hooked Braces, Black Text. Front Scale: LL1, A [B, T Cot, S Cos, C] D, LL2 Back Scale: LL3, DF [CF, CIF, CI, C] D, L.

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