Lot 9538: Pair of Slide Rules

RR Auction

RR Auction

2015-10-06 13:10:53

Lot 9538: Two slide rules: an Aristo-MultiTrig slide rule, model number 0929, measuring 13.25 x 2, including its sheath; and a Keuffel & Esser beginner's slide rule, model number N4058W, measuring 10.5 x 1, including its sheath. In overall very good condition, with general wear from use and pencil markings to the Keuffel & Esser slide rule. The Leon Ford Collection. RR Auction's Space and Aviation Auction 463 Thursday, 22nd October 2015 Estimate: $200-400
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