373. Auktion

1910, Tuberculosis 2 c. with lined background and "CHARLEROIS 1911" with plain background, each in miniature sheets of 25, used, vf (COB F85,103; 2725,-€)

1906, essay for reply envelope with window for the value impression of the response envelope, to that the reply envelope with two different impression “Timbre imprimé sur l’enveloppe” and “Timbre d’affran-chissement”, window envelope with tears at top, otherwise fine, sample  presented on the UPU Conference in Rome, very rare “pair”