Home / Store / School and Office / Vintage Acu-Math No.400 Slide Rule Vintage Acu-Math No.400 Slide Rule$12.50 In stock Vintage Acu-Math No.400 Slide Rule quantity Add to cart Category: School and Office Tags: math, rule, ruler, School Description Additional information Description Vintage Acu-Math No.400 Slide Rule. Good condition, comes with case. Additional information Weight .2 lbs Dimensions 12.75 × 2.5 × .4 in Related products Vintage Rabone 1176 24in Wood Folding Ruler $39.50 Add to cart Vintage Bostitch Model B5B Heavy Duty Stapler $10.00 Add to cart Vintage Sheaffer Prelude Brushed Chrome Pens and Pencil Set of 3 $60.00 Add to cart Vintage Ricoh No.105 Slide Rule in Leather Case $20.00 Add to cart