Before computers, slide rules were IMPORTANT tools. Today, they are relics of the past.
However, this Keuffel & Esser polyphase slide rule is not a relic. Instead, it's a peek into the greatest math minds from yesterday. A look at the history of mathematics and how slide rules were used by engineers and scientists before computers were in every household.
A great gift for the math nerd (or math genius) in your life. 🔢
Listing Includes
- ONE vintage Keuffel & Esser slide rule with leather case and instruction manual (as shown)
Item Condition
Good condition with only minor wear noted to slide rule. Fits easily into leather carrier. Manual shows wear, loss from tape removal, discoloration and folding - but still 100% readable.
Manual copyright 1944.
>> Please view pictures carefully as they are part of the description. This is truly a one of a kind, found item. Embracing its vintage beauty, this piece may contain imperfections from years of wear. These imperfections are not considered defective.
Item Details
- Materials: plastic, wood, leather, paper
- Color: varies
- Dimensions: slide rule - 10-5/8" L x 1-3/8" D; leather case - 11.5" x 2"
🌎 Buy Vintage - Save the Planet!!
