AUSTRIA
Austrian offices in Crete
Surcharge changing denomination from kreuzer to franc on 4k stamp of Austria
FRANCE
French offices in Chungking, China
Chinese surcharge and overprint on 2fr stamp of Indo-China single
FRANCE
French offices in Mongtseu, China
Chinese surcharge and overprint on 50c stamp of Indo-China single
FRANCE
French offices in Alexandria, Egypt
Overprint on 5fr stamp of France single
FRANCE
French offices in Zanzibar
10a surcharge and overprint on 1fr stamp of France single
JAPAN
Japan offices in China
Overprint on 4s stamp of Japan single
JAPAN
Japan offices in Korea
Overprint on 1y stamp of Japan single
GERMANY
German offices in China
Overprint on 5m stamp of Germany single
GERMANY
German offices in Morocco
2p50c surcharge on 2m stamp of Germany single
GREAT BRITAIN
British offices in China
Overprint on $10 stamp of Hong Kong single
ITALY
Italian offices in Africa, Tripoli, Lybia
Overprint on 1L stamp of Italy single
ITALY
Italian offices in Peking, China
$2 surcharge and overprint on 5L stamp of Italy single
ITALY
Italian offices in Jerusalem, Ottoman Empire
20p surcharge and overprint on 5L stamp of Italy single
POLAND
Polish government in exile in Great Britain during WWII
55g surcharge and overprint on stamp of Polish government in exile single
UNITED STATES OF AMERICA
United States offices in Shanghai, China
$1 surcharge and overprint on 50c stamp of the United States single