Automatic and central battery operated desktop intercom.

GUIPÚZCOA

Jordan Power Station. Partial view of a 1st search engine rack showing the test panel, jacks and occupancy and overload lamps.

Telephone directory advertising.

Complaints desk at the Gran Vía headquarters.

Automatic switchboard.

SWITCHBOARD : HOTEL GALICIA SWITCHBOARD

COMMERCIAL INFORMATION CIRCULAR. YEAR II, NUMBER 4 - APRIL

Inauguration of the automatic in Linares.