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Tesla T53 |
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| Year of manufacture: | 1953/cca 1990 |
| Manufacturer: | Tesla Prague-Karlín, later Liptovský Hrádok and Stropkov |
| Description: |
The so-called "railway selector" user apparatus. A separate cabinet with relays belonged to this device. The telephone contains an optical indicator of line usage. When the line was occupied, the indicator would move and its color would change. |
