Black and white. Image is blemished. View of PDP-11 in a "severe environment" area. Typed description reads: The IDACS11/07 computer system is designed for operation in severe environments such as the one depicted. The system is enclosed in a special cabinet that protects the system from severe temperatures, seepage of oils, damaging gases and other contaiminants." "--30--" "For Further Information; Howard Steiner; (617) 897-5111 ext. 3056.'' Also written in black ink "1972"