Austria 1863 - Austria 1863 - Letter from Trieste to Bologna with a two-color franking (16 kreuzer) and transit. - Austria emissione 1863 C. Unificato 3 Kr. verde n. 18 (2 es.) + 10 Kr. bruno n. 20

Splendid, complete letter with text sent from Trieste on March 9, 1863 and addressed to Bologna (Kingdom of Italy). The two-tone frank of 16 Kreuzer total consists of a pair of 3 Kreuzer green (bicephalous eagle in an oval) and a 10 Kreuzer brown brick-red. All stamps are clearly cancelled by the circular Trieste postmark.
On the front is impressed the rare and clear linear stamp 'P.D.' (Postage Paid to Destination). On the back, the letter presents the important historical traceability of the journey:
• Stamp of the Italian Railway Ambulant Office 'DESENZANO A MILANO (2)' dated March 10, 1863.
• Arrival stamp in double circle 'BOLOGNA' dated March 11, 1863.
Entire document, of great philatelic interest for the study of the tariffs and of the Risorgimento railway transits between the Austrian Empire and Italy. Very good preservation as in the photo.