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'DATA COMMUNICATION SYSTEM TYPE GH210- USERS HANDBOOK FOR OPERATION WITH ICL/TELETYPE/POTTER TERMINALS' by Standard Telephones and Cables Limited (STC). Includes operating procedures and general information on GH210 data terminals when operating with the ICL 2640 tape reader, the Teletape BRPE 110 tape Punch and the Potter Printer.

In use between 1972 and 1980 for transmitting branch orders to depots.