Artifact Details Title Binary To Octal Decoder System Building Block Catalog Number 102629340 Type Physical object Description A red tag attached reads "Repaired by: Tested 477, Date: 7/7/70, Describe Repairs: Board tested good". There is writing on the side metal edge that reads "CLAMPS REMOVED". Date 1965 ca. Manufacturer Digital Equipment Corporation (DEC) Identifying Numbers Model number 1151 4151 4153 J Part number 4151 Serial number 0172241 Dimensions overall: 1/2 in x 7 in x 4 1/2 in Category Component/module