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This vintage Acu Math No 400 slide rule is a rare find, originating from the United States. It comes in excellent condition with its original case, adding to its appeal for collectors. This historical tool, used in engineering and other scientific fields, showcases the quality craftsmanship and design of its era, making it a valuable piece for enthusiasts of slide rules and vintage technology.
photos shows overall condition.please see photos for condition.
If you are happy with your purchase,please be kind and leave positive response and i will gladly do the same in return .thanks for looking!
