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  2. General Post Office, Chennai - Wikipedia

    en.wikipedia.org/wiki/General_Post_Office,_Chennai

    Chennai General Post Office (GPO) is located on Rajaji Salai at Parry's Corner, Chennai. It functions in a building built in 1884. It is located opposite to the Chennai Beach suburban railway station. Chennai GPO covers an area of about 23.33 km 2 (9.01 sq mi) and serves a population of around 220,000. It has no sub-branch offices.

  3. General Post Office - Wikipedia

    en.wikipedia.org/wiki/General_Post_Office

    The General Post Office (GPO) [1] was the state postal system and telecommunications carrier of the United Kingdom until 1969. [2] Established in England in the 17th century, the GPO was a state monopoly covering the dispatch of items from a specific sender to a specific receiver (which was to be of great importance when new forms of communication were invented); it was overseen by a ...

  4. General Post Office, London - Wikipedia

    en.wikipedia.org/wiki/General_Post_Office,_London

    In 1895, GPO North was opened immediately to the north of GPO West (and connected to it across Angel Street by a second-floor footbridge), as the GPO continued to expand. [34] Known as Post Office Headquarters (PHQ), it was designed by Henry Tanner to house the Postmaster General and the GPO's administrative departments (the Secretary's Office ...

  5. Y service - Wikipedia

    en.wikipedia.org/wiki/Y_service

    McKay, Sinclair (2012), Secret Listeners: How the Y Service Intercepted German Codes for Bletchley Park, Aurum, ISBN 978-1-84513-763-2 Macksey, Kenneth (2003). The Searchers: Radio Intercept in Two World Wars .

  6. Portishead Radio - Wikipedia

    en.wikipedia.org/wiki/Portishead_Radio

    Other maps covered the North Atlantic and Western European areas. During the 1950s and 1960s there was a steady increase in traffic levels, and the telex -over-radio (TOR) system started operations. By 1965, the station employed 86 radio officers who handled over 11 million words of traffic per year, communicating with on average over 1,000 ...

  7. General Post Office, Mumbai - Wikipedia

    en.wikipedia.org/wiki/General_Post_Office,_Mumbai

    Situated in the vicinity of Chhatrapati Shivaji Terminus, the Mumbai General Post Office (GPO) is a paradigm of Indo-Saracenic architecture. Mumbai GPO is one of the five Philatelic Bureaus in the country (others being Chennai GPO , Kolkata GPO , Parliament Street, and New Delhi GPO ) that are authorised to sell the United Nations stamps.

  8. General Post Office, Hobart - Wikipedia

    en.wikipedia.org/wiki/General_Post_Office,_Hobart

    General Post Office (abbreviation GPO, commonly known as the Hobart GPO) is a landmark building located on the corner of Elizabeth Street and Macquarie Street in Hobart, Tasmania, Australia. It stands next to the former Mercury Building and has served as the headquarters of the Tasmanian Postal system since its construction in 1905, though mail ...

  9. GPO telephones - Wikipedia

    en.wikipedia.org/wiki/GPO_telephones

    This was the GPO's first attempt at a compact, supervised extension plan, for small businesses. The Plan 5 had 2 extensions plus the control station, the Plan 7 had only 1.These instruments were manufactured for the BPO by GEC.