Lot 20217 – 1923 Postcard with « Militari Italiani a Corfù/Francatura a carico destinatario » from a submarine

1923 (Sept) Postcard to Brindisi with heading « Zona sprovvista di francobolli » in manuscript (zone without stamps available), sanctioned by « Militari Italiani a Corfù/Francatura a carico destinatario » two-line hs and nevertheless not taxed, with cachet « R° Sommergibile » at top right. A rare usage with additional interest for originating from a submarine.