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A photograph of some sort of electronics interface equipment. A wide brushed steel face plate is set between two dark brown wooden panels. Set in the steel face place are dozens of round terminal jacks in every color of the rainbow, with lines connecting or grouping some jacks and electrical circuit diagram signals next to others. Above and below the field of jacks are wide green female connectors, some of which are labeled "TRANSCONDUCTOR" or "AMPLIFIER." To the left of the jacks are the words "OPERATIONAL RP MANIFOLD." To the right are "PHILBRICK RESEARCHES," with the words separated by a logo. At the bottom right are the words, "BOSTON, MASS USA."