Germany official card from Grand Duchess of Hesse's 1912 Flight Week, sent on the Schwaben Zeppelin. Bears 'Goose' 10pf semi-official single airmail franking tied by Flugpost am Rhein und am Main MAINZ special cancel. Slightly worn, good used condition. Sieger variant Vg with Reisling Wine typewritten advertiisement. '01 CV EUR135