Congo_1900_Yvert_33-Scott_20c_woman_IS

Congo_1900_Yvert_33a-Scott_unadopted_15c_woman_sepia_AP

Congo_1900_Yvert_33a-Scott_unadopted_15c_woman_sepia_AP_detail

Congo_1933_Yvert_113-Scott_bridge_IS

Congo_1933_Yvert_113a-Scott_unissued_in_TD_bridge_etat_black_a_AP

Congo_1933_Yvert_113a-Scott_unissued_in_TD_bridge_etat_black_b_AP

Congo_1933_Yvert_113a-Scott_unissued_in_TD_bridge_etat_red_AP

Congo_1933_Yvert_122-Scott_Institut_Pasteur_IS

Congo_1933_Yvert_122a-Scott_unissued_in_TD_Institut_Pasteur_etat_black_AP

Congo_1933_Yvert_122a-Scott_unissued_in_TD_Institut_Pasteur_etat_black_CP

Congo_1933_Yvert_122a-Scott_unissued_in_TD_Institut_Pasteur_etat_black_CP_detail

Congo_1933_Yvert_122a-Scott_unissued_in_TD_Institut_Pasteur_etat_dark-brown_AP

Congo_1933_Yvert_122a-Scott_unissued_in_TD_Institut_Pasteur_etat_dark-brown_AP_detail