This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Puhelinvlittjn kuulokkeita viestikeskus Lokki. en Telephone exchange operators' headsets at the telephone exchange of communication centre Lokki in Finnish supreme HQ museum fi Puhelinvlittjien kuulokkeita viestikeskus Lokin puhelinkeskuksessa Pmajamuseossa own MKFI Telephone exchange equipment Headsets Communications center Lokki