Zeppelin PC flown on the Graf Zeppelin LZ127 airship's 1929 Schweizfahrt / Swiss Flight, with Bordpost / Luftschiff on-board CDS. Dropped at Zuerich. Slightly worn, as per scans. '17 CV EUR450 -- SWISS STAMP WAS ADDED -- not sure when or why. This is from the estate of the nephew of Oberingenieur Karl Beuerle, a lead mechanic on the Zeppelin. A long-time airman, having survived serving in various WWI Zeppelin airships, he was with the Graf from the start (we have several pioneer usages as well!). We were lucky enough to purchase the entire Zeppelin collection of the nephew, who took all of "Onkel Karl's" correspondence.