Keuffel & Esser Slide Rule Manuals & Cases Set
Updated October 15, 2026
This auction ended on October 16, 2026.
See upcoming auctions from Nelson's Auction Services LLC.
| Lot number | 112 |
| Auction | October Multi-Consignor Auction - 1 |
| Date | October 16, 2026 at 6:30 PM CDT |
| Auction house | Nelson's Auction Services LLC |
| Location | Old Ripley, Illinois |
Step back in time with this impressive collection of vintage drafting and mathematical tools from Keuffel & Esser Co. This set features three distinct 'Slide Rule Manual' booklets: one for the Polyphase No. 4053, one for the Polyphase No. 68 2063, and one for the Polyphase Duplex Pocket Slide Rule No. 68 3019. Also included are two dedicated carrying cases for the slide rules, finished in a professional black material, designed for protection and portability. Whether you are a dedicated collector of engineering memorabilia or an enthusiast of classic analog calculation methods, this K&E ensemble offers a fantastic glimpse into the precision instrumentation of the past.
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