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Estimated shipping time:

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1pm → Prepare by 5pm

5pm → Prepare by The next morning

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Estimated fulfillment time:

fulfillment is scheduled for around 2026/01/22.

Cash on delivery is limited to credit or cash on delivery. For other payment methods, please refer to here.

*It may take various time for the product to be delivered on January Wednesday, or public holidays, and depending on stock availability.

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More information about Keuffel & Esser Co.4081-3

This Keuffel & Esser 4081-3 slide ruler is a high-quality tool that was manufactured in the United States. It comes with leather case (that show some damage see Pictures) Protect it from scratches and damage. The ruler is ideal for anyone in the engineering or science fields and is a wonderful addition to any collection of vintage tools. The ruler is easy to use and has accurate measurements, making it highly functional for a variety of projects. The craftsmanship of this slide ruler is exceptional and is a testament to the quality of manufacturing in the United States.