Union Jack (synonym of flag of the United Kingdom)

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  Union Jack
  (3 stamps, 2001-2008)
  
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  Andrew S..ion Jack
  1966
  
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  Andrew S..ion Jack
  1966
  
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  Churchil..ion Jack
  1974
  
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  Flag of ..ion Jack
  1987
  
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  HMS Roya..ion Jack
  1967
  
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  hoisting..ion Jack
  (2 stamps, 1934)
  
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  King Geo..ion Jack
  2013
  
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  Medway Q..ion Jack
  1992
  
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  Union Ja.. Britain
  1980
  
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  Union Ja..ena Flag
  (2 stamps, 1968)
  
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  Union Ja..nd Fleet
  1996
  
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  1£ issue=60th Anniversary of the Accession of Queen Elizabeth II b
  
  Union Ja..t Helena
  2012
  
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  20p issue=60th Anniversary of the Accession of Queen Elizabeth II b
  
  Union Ja..over sea
  2012
  
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  Union Ja..Victoria
  (2 stamps, 1977)