France BF1 Bf 1 BLOCK OF 4 SHEETS ON LETTER INTERNATIONAL EXHIBITION PARIS 1925

  
Contractual photo, you are buying the stamp of the photos! Rarer than the BF1 central block of the souvenir sheet with the four stamps of the sage type number 216 and therefore the 216 b cancellation of the 1925 Paris International Philatelic Exhibition on exhibition envelope.

What simply huge because even rarer than the souvenir sheet itself.