Artifact Details Title Clock S1404H system building block Catalog Number 102729756 Type Physical object Description The object consists of a green board with various active and passive components, surrounded by an aluminum frame, and a blue plastic 22 pin male connector. There are two round inspection stamps in the corner on the component side. Date 1963 ca. Manufacturer Digital Equipment Corporation (DEC) Place Manufactured Maynard, Mass. Identifying Numbers Model number S1404H Etched on solder side Part number 1404 Engraved on end Serial number 0236035 Engraved on side Dimensions overall: 1/2 in x 7 in x 4 1/2 in Category Component/module