AIR MAIL and ZEPPELIN Switzerland

Quality: ✉

8.9.1938 airmail cover sent registered from Zürich to Sibiu, Romania and displaying a colourful franking including the 10 on 15rp italic surcharge (SBK F19, cat. value CHF 75 on cover), framed postal marking on the front indicating that additional franking had to be collected from the sender as the letter was underpaid, transit and arrival postmarks on the back, a scarce destination, vf