Vintage Mannheim Acu-Math No.400 Slide Rule w/Case For Sale
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Vintage Mannheim Acu-Math No.400 Slide Rule w/Case :
$16.50
Up for sale is a vintage Mannheim Acu-Math No. 400 Slide Rule with Case. It was manufactured in the United States and is a must-have for slide rule collectors. The slide rule was very popular in the 1930s and is great for anyone who loves math or engineering. It's in excellent condition and comes with a protective case to keep it safe. Don't miss your chance to own this rare piece of American history.
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