Vintage K&E Polyphase Slide Rule N4053-3 w/ Leather Case USA Pat. 1900
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Product details
| Management number | 13369543 | Release Date | 2025/09/20 | List Price | $32.99 | Model Number | 13369543 | ||
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| Category | |||||||||
on the corner of leather case, there are small mark as you can see in last picture
Please make sure you check all pictures for condition
discontinued item from early-mid 20th century
Vintage K&E Keuffel & Esser Polyphase Slide Rule, Model N4053-3, made in the USA with patented date marked June 5, 1900. Features a mahogany wood body with celluloid laminate and crisp, legible scales. Comes with original leather case (shows wear on back), embossed with "K&E Polyphase Slide Rule." Includes reference tables on reverse. Excellent condition overall with no major damage or cracks . A classic engineering tool for collectors, math enthusiasts, or vintage décor display.
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keuffel & esser
polyphase slide rule
vintage math tool
mid century engineer
made in usa
mahogany slide rule
antique calculator
patent 1900
N4053-3 slide rule
wood celluloid rule
vintage drafting tool
vintage math collectible
leather case included
| Category | Home > Other |
|---|---|
| Size | N/A |
| Brand | None |
| Condition | Good |
Other
50 to 75 years
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