Stockholms telegrafstation. Ensnörsbord, multipelväxelbord vid lokalstationen på Skeppsbron 2. Public domain photograph related to development of telegraph, free to use, no copyright restrictions image - Picry More
Stockholms telegrafstation. Internbassatationen på Skeppsbron2. Public domain photograph related to development of telegraph, free to use, no copyright restrictions image - Picryl description
Telefonstationen på Skeppsbron 2, Stockholm, 1892.
Överkopplingsplint. Public domain photograph - Sweden in 20th century, no copyright restrictions image - Picryl description