Artifact Details Title The Binary Slide Rule, circular slide rule Catalog Number 102630128 Type Physical object Description Large curcular slide rule in leatherette case. Despite the name "binary" it contains no binary scales. A small manual for the instrument is inside the case. Object consists of object, case and instruction manual. Date c. 1940 Manufacturer Gilson Slide Rule Company Place Manufactured US Dimensions overall: 1/2 in x 8 1/4 in x 8 7/8 in Category Pre-computer/slide rule Credit Gift of Wolfgang Schaechter Lot Number X2551.2003
