This vintage slide rule is a K&E Log Log Duplex 4083-3, manufactured in the United States. Measuring 12.5 inches, it comes with a leather case and is in good condition. Perfect for collectors of engineering and science memorabilia from the 1930s to now, this slide rule is a must-have. The Log Log Duplex model is renowned for its versatility and accuracy, making it a valuable tool for students and professionals alike. Don't miss out on adding this historical piece to your collection.

#The item is sold as is and is not new ,shows signs of normal use.

#item sanitized.

#If there are any questions or concerns, feel free and don't hesitate contact me.

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