Artifact Details Title SLT Card Catalog Number 102715969 Type Physical object Description Object is a SLT Solid Logic Technology card used in IBM's System /360 family of machines. Logic modules are coated with a red material, indicating early production, as oppposed to bright aluminum caps as were used in nearly all production versions. Date 1965 ca. Manufacturer International Business Machines (IBM) Place Manufactured U.S. Identifying Numbers Other number 4028 1644 349 On connector shroud. Dimensions overall: 3/8 in x 1 5/8 in x 3 in Category Component/module Lot Number X5246.2009