In 1913,

following a government antitrust suit, AT&T agreed to the Kingsbury Commitment in which AT&T would sell their $30 million in Western Union stock, allow competitors to interconnect with their system. The Bell trademark pictured here was used from 1921 through 1939 by both the AT&T corporation and the regional operating corporations to co-brand themselves under a single Bell System trademark. It remained as some form of this logo for over 50 years!

DESIGNER

UNKNOWN

DATES IN USE

1913~1969