Artifact Details Title Telecoupler II Catalog Number 102696600 Type Physical object Manufacturer CP+ Place Manufactured U.S. Identifying Numbers Serial number C-0 021362 Inside battery compartment Dimensions overall: 2 3/8 in x 2 in x 7 1/4 in Category interconnect/network/modem Credit Gift of Vinton G. Cerf Lot Number X4774.2008