Construction
![1920](/image/17924/base250X250/1920-7th-philatelic-congress-of-gt-britain-newcastle-on-tyne-1920.jpg)
Mint never hinged
1920. 7TH. PHILATELIC CONGRESS OF GT. BRITAIN NEWCASTLE ON TYNE 1920
![1922](/image/17941/base250X250/1922-union-des-timbrophiles-luxembourg-1922-exposition-internationale-de-timbres.jpg)
Mint never hinged
1922. UNION DES TIMBROPHILES LUXEMBOURG 1922. EXPOSITION INTERNATIONALE DE TIMBRES POSTE DU 27 – 31 AOÛT 1922
![1932](/image/17927/base250X250/1932-19th-philatelic-congress-of-great-britain-brighton-june-13-17-1932.jpg)
Mint never hinged
1932. 19TH PHILATELIC CONGRESS OF GREAT BRITAIN BRIGHTON JUNE 13 – 17 1932
![1914](/image/17047/base250X250/1914-exposition-internationale-de-lyon-1er-mai-1er-novembre-1914.jpg)
Mint never hinged
1914. EXPOSITION INTERNATIONALE de LYON 1er MAI – 1er NOVEMBRE 1914