1908, Military Airship M 1 constructed by Crocco-Ricaldoni, 2 unused picture cards "Cantiere Sperimentale / Vigna di Valle (Bracciano)", one with 2 authentic signatures of Gaetano Arture Crocco plus used and unused picture card depicting the airship above Rome during its flight on October 31
6; Flugpost; FLUGPOST INTERNATIONAL; Italien
6; Airmail; INTERNATIONAL AIRMAIL; Italy