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To visit our non-store website where you can learn about antique tools please follow this link www.roseantiquetools.com

Home Back Antique 519a Keuffel & Esser Stadia no. 4100 slide rule 519a $30.00 Ruler has Keuffel & Esser Co. on the back with 4100 on one end the slide is missing More pictures upon request. Send to a Friend!