Acu-Math No 1240 Vintage Slide Rule

Acu-Math 1240 5" pocket slide rule (1965) with leather sheath. Nice shape.

VINTAGE ACUMATH NO. 400 SLIDE RULE WITH CASE NICE CONDITION MADE IN USA

Acu-Math No 1240 Vintage Slide Rule

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Vintage Mannheim Professional Acu-Math No.311 Slide Rule & Case

Vtg ACU-MATH No. 500 Slide Rule with Sheath Acumath

Vintage Slide Rule with Leather Case No. 1240 ACU-Math