Telephone switchboard from the 70s

Rare object which refers to the history of business telephony. We are in the 70s: for small businesses there was telephone intercom, allowing you to call someone directly from a dedicated key and to view the occupancy of certain positions. The most widespread brands of these intercoms were: ericsson or picard lebas. This is the intercom marketed by the picard lebas company in 1980. The telephone is close to new, superb decorative object in a private or professional setting. In the last case the message could be " modernity with (or thanks to) solid foundations.