1 M. and 15 Pfg. Heuss I and 30 Pfg. Heuss II being a correctly franked on foreign countries R special delivery airmail postcard from FRANKFURT 21. 11. 60 with legitimate text to the Switzerland. Credit institute in Zurich with arrival postmark, 1 M. with slight glued close to the edge, otherwise fine commercial usage, very scarce postage step!