Artifact Details Title Read-Write Switch 1984-A System Building Block Catalog Number 102691637 Type Physical object Description There is a paper tag attached that reads "Reject Spotted Board". A "T" is scratched to the left of the part number. There are two black dots on either side of the part number. There is a blue stain in the middle of the PCB. Date 1963 ca. Manufacturer Digital Equipment Corporation (DEC) Identifying Numbers Model number 1984-A Part number 1984 Serial number 0013006 Dimensions overall: 1/2 in x 7 in x 4 1/2 in Category Component/module