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

Vintage Slide Rule Acu Math No.400 With Case, U.S.A.

Acumath No. 400 Slide Rule with Case Made USA Vintage

Vintage ACU-Math No. 400 Mannheim Slide Rule with case Engineering Ruler

Vintage Slide Rule Acumath No. 400 with Case - Has Ink Spots - View Pics

Acumath No. 400 Slide Rule with Case Made USA Vintage

Vintage Acu-Math No. 400 Slide Rule w/ Case & Instruction Manual

Vintage Acu-math Slide Rule - No. 400-With Case - Made in USA