There’s a long winding history behind the GPO brand, which is short for General Post Office. The short of it is this: The GPO dates back to the mid 1600s when Oliver Cromwell’s Parliament established the sole postal carrier for the U.K. More than 200 years later, the GPO took control of Britain’s telegraph network, and similarly the telephone network in the early 1900s. GPO remained the sole supplier of both until 1982 when the first carrier was licensed in competition.
GPO eventually faded until it was picked up by ProTelX, a U.K. based manufacturer of all sorts of electronics that was established in 2009.
Today, GPO produces all kinds of retro electronics, including telephones, cassette recorders, record players, vinyl carrying cases, portable analog radios, and more.