Artifact Details Title ACT 11 and PDP-11 unibus tester Catalog Number 102772427 Type Still image Date 1972 Publisher Digital Equipment Corporation (DEC) Identifying Numbers File number 6443 DEC identification number Format Contact sheet Category Trial proof; Snapshot Collection Title Digital Equipment Corporation records Series Title Still images: Archival proofs Credit Gift of Hewlett-Packard Company Lot Number X2675.2004