France_1920_Dallay_Precurseur_Guynemer_lilac_+_sepia_typo_AP

France_1920_Dallay_Precurseur_Guynemer_overprinted_typo_a_US

France_1920_Dallay_Precurseur_Guynemer_overprinted_typo_b_US

France_1920_Dallay_Precurseur_Guynemer_typo_ESS

France_1920_Dallay_Precurseur_Guynemer_typo_US