Tsar Ferdinand

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  Tsar Ferdinand
  (19 stamps, 1901-1910, 6 are ovpts)
  
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  Tsar Ferdinand
  (3 stamps, 1911-1913, 2 are ovpts)
  
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  Tsar Ferdinand
  (5 stamps, 1915-1919, 3 are ovpts)
  
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  Tsar Ferdinand
  (4 stamps, 1918)
  
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  10s issue=1921b
  
  Tsar Fer..nd & map
  1921
  
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  Tsar Fer..ent lion
  1921
  
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  Tsar Fer.. uniform
  (4 stamps, 1911-1915, 2 are ovpts)
  
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  Tsar Fer.. uniform
  (3 stamps, 1911-1913, 2 are ovpts)
  
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  Tsar Fer.., 1887 &
  (3 stamps, 1907)
  
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  Tsar Ferdinand I
  (3 stamps, 1912)