Artifact Details Title Triple Flip-Flop 4206H system building block Catalog Number 102629909 Type Physical object Description The board is densely populated with various components and wires, which are surrounded by an aluminum frame and a blue plastic 22 pin male connector. At the end opposite the connector there are four insertion points, two are red and two are black. Date 1965 ca. Manufacturer Digital Equipment Corporation (DEC) Identifying Numbers Model number 4206H Printed on the solder side Other number 4206 Stamped into the aluminum frame on the side Serial number 0159776 Stamped into the side of the aluminum frame Dimensions overall: 1/2 in x 4 1/2 in x 10 1/2 in Category Component/module