KEUFEEL AND ESSER CO. TEACHING SLIDE RULE.

Being a giant accurate working slide rule. Has center slide with recesses for moving the gauge back and forth while teaching the use of a slide rule. Made in U.S.A. Patented June 5, 1900. Model 100. SIZE: 85″ t X 7-3/4″ w. CONDITION: Very good, working order. Hung from iron chains. 9-93479 (400-600) – Lot 2572

Auction: Fine Art, Asian & Antiques - August 2014

Please Note: All prices include the hammer price plus the buyer’s premium, which is paid by the buyer as part of the purchase price. The prices noted here after the auction are considered unofficial and do not become official until after the 46th day.

Image	Lot	Price	Description
	2572	$237.00	KEUFEEL AND ESSER CO. TEACHING SLIDE RULE. Being a giant accurate working slide rule. Has center slide with recesses for moving the gauge back and forth while teaching the use of a slide rule. Made in U.S.A. Patented June 5, 1900. Model 100. SIZE: 85″ t X 7-3/4″ w. CONDITION: Very good, working order. Hung from iron chains. 9-93479 (400-600) – Lot 2572 Auction: Fine Art, Asian & Antiques - August 2014 Please Note: All prices include the hammer price plus the buyer’s premium, which is paid by the buyer as part of the purchase price. The prices noted here after the auction are considered unofficial and do not become official until after the 46th day.

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KEUFEEL AND ESSER CO. TEACHING SLIDE RULE.