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Siemens & Halske
// ΜΤ-017330 // 1972
Telephone Exchange Control
DImensions: 8 x 40 x 21,5 εκ. Location: Germany Material: glass,metal,bakelite
Metal, grey box, telephone exchange control made by Siemens with a number selection disk and six operation switches and their respective indicator lights, four line regulating buttons. At the front left part, there is an indicator panel for line current resistors with a respective black, rotary dial.