Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058
Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058
Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058
Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058
Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058
Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058
Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058
Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058
Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058
Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058
Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058

Keuffel & Esser K&E 10.5" Beginner's Slide Rule 4058

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Vintage 10-1/2 inch Keuffel & Esser K&E beginner's slide rule no. 4058. Missing slide window, otherwise in great shape. Made in USA