I francobolli soprastampati B,L,P, e le buste-lettera postali, "1921·1923"
By: Bruno Barbacovi.
Publisher: Edizione Filasta
Published: 1979
Place of publication: Rovereto
Language: ita
Number of pages: 225
Subjects: Postage stamps -- Italy -- History.; Cancellations (Philately) -- Italy -- History.; Postal stationery -- Italy -- History.