1912, airmail on the Rhine and Main, 10 Pfg airmail stamp and 5 Pfg Germania on airmail postcard from \"airmail on the Rhine and Main / Mainz 16.6.12\" to Basle / Switzerland, there with 15 Rp postage due stamp provided, the 5 Pfg Germania above minimal patina, otherwise faultless, not frequent and decorative piece, Si. 175.-