General postal service (3rd scheduled trip), delivery from Austria, inland envelope of the 1st weight class to the USA, franked with 30 Heller, submarine stamp on the back dated January 29, 17, and the same stamp on the front dated February 10, 17 (date of return to the post office), on the front L 2 " K.K. Censorship Office Vienna CENSORSHIP", and on the back a very rare censorship closure slip " K.K. CENSORSHIP OFFICE VIENNA ", flawless condition, Michel / Geissler 1. 200.- + +