Artifact Details Title Slide Rule Carrying Case Catalog Number X2259.2002B Type Physical object Description Leather case for slide rule (x2259.2002A). Top of closing flap is missing with remainder embossed with "K+Σ" secured under loop edged with silver strips. Manufacturer Keuffel & Esser Company Place Manufactured New York, USA Identifying Numbers Other number PAT 2.000.337 Embossed in silver strip on loop Dimensions 1 1/4 x 22 7/8 x 2 1/4 in. Category Office equiptment/Carrying case Credit Courtesy Gwen and Gordon Bell Lot Number X2259.2002B
