1912, airmail on the Rhine and Main, 10 Pfg airmail stamp, 2 vertical pairs, and 5 Pfg Germania on photo postcard from \"airmail on the Rhine and Main / Darmstadt 23.6.12\" to Barmen, well perforated, partly minimal patina in the perforation, very scarce franking with 4 airmail stamps! Si. 200.-+plus