User:User13126789/sandbox/Flags/Flags in 1904

Sovereign states

• 
  Andorra
• 
  Angoche
• 
  Argentina
• 
  Aussa
• 
  Australia
• 
  Austria-Hungary
• 
  Bali
• 
  Belgium
• 
  Bhutan
• 
  Bolivia
• 
  Brakna (to 18 October)
• 
  Brazil
• 
  Bulgaria
• 
  Busoga
• 
  Canada
• 
  Champasak (to 22 November)
• 
  Chile
• 
  China
• 
  Chokwe
• 
  Colombia
• 
  Congo
• 
  Costa Rica
• 
  Cuba
• 
  Dar al Kuti
• 
  Darfur
• 
  Denmark
• 
  Dominican Republic
• 
  Ecuador
• 
  El Salvador
• 
  Ethiopia
• 
  France
• 
  Geledi
• 
  Germany
• 
  Greece
• 
  Gowa
• 
  Guatemala
• 
  Ha'il
• 
  Haiti
• 
  Honduras
• 
  Italy
• 
  Japan
• 
  Johor
• 
  Kasanje
• 
  Korea
• 
  Liberia
• 
  Liechtenstein
• 
  Luxembourg
• 
  Mbunda
• 
  Mexico
• 
  Monaco
• 
  Montenegro
• 
  Morocco
• 
  Muscat and Oman
• 
  Mutayr
• 
  Netherlands
• 
  Nicaragua
• 
  Norway
• 
  Nri
• 
  Oron
• 
  Ottoman Empire
• 
  Panama
• 
  Paraguay (obverse)
• 
  Paraguay (reverse)
• 
  Persia
• 
  Peru
• 
  Portugal
• 
  Riyadh
• 
  Romania
• 
  Russia
• 
  San Marino
• 
  Serbia
• 
  Setul
• 
  Siam
• 
  Spain
• 
  Sweden
• 
  Switzerland
• 
  Tagant
• 
  United Kingdom
• 
  United States
• 
  Upper Aulaqi Sheikhdom (to 5 February)
• 
  Upper Aulaqi Sultanate (to 23 April)
• 
  Uruguay
• 
  Venezuela
• 
  Wadai
• 
  Wajoq

Other states

• 
  Dervish State
• 
  Gurian Republic
• 
  Tagalog Republic