Director's telephone hub “KD-6”. Production of the Krasnaya Zarya plant (formerly Ericsson), Leningrad. The number 6 in the abbreviation means the number of external telephone lines to which the manager could directly connect, while being able to switch the lines among themselves for a conference call. Material – bakelite. The weight of the device is 4 kg. Overall dimensions (cm): 31.5 x 19.2 x 16.2. Produced since the early 60s of the 20th century, the collection includes a model produced in 1969. Condition is good, no chips or cracks. The offices of mid-level Soviet leadership (enterprise directors, military officers) were equipped with such devices. Contents: Telephone hub, socket with socket cord. They were produced in the 1960s, but 50 years later this technique is successfully used.