Video intercom on display at the 1967 Milan Trade Fair

Inside the electronics, electrical engineering and telecommunications pavilion: a live demonstration of a video intercom system by Urmet Electro-telephone Systems Ltd, Milan (Italy), April 14th, 1967 - Approval required for all non-editorial uses, No release for personalities, trademarks, models, intellectual works, works of art, The release of rights is the responsibility of the clients (Photo by Fondazione Fiera Milano/Mondadori Portfolio via Getty Images)