Artifact Details Title HX37 Module Catalog Number 102730799 Type Physical object Description Object is a PCB with a handle for extraction. It bears 19 discrete transistors and other components. Printed on the component side is "DATAPHONE INTERFACE" and copyright SDS-64. On the solder side is two round and one square inspection stamp. Date 1963 Manufacturer Scientific Data Systems (SDS) Place Manufactured Santa Monica, Calif., U.S. Identifying Numbers Model number HX37 Printed on label on handle Other number 111063B Stamped on solder side Serial number 679344 Printed on label on handle Dimensions overall: 6 in x 5/8 in x 5 5/8 in Category Component/module Credit Gift of Rudolf F. Wrobel Lot Number X3736.2007