1936 Hindenburg Zeppelin 1st North American return flight cover with three stamps (trivial perf. toning) tied by Ciudad Trujillo ds, elaborate hand-drawn cachet plus the normal large flight cachet (for USA despatches), Frankfurt pictorial bs, two Olympics oval seals on reverse, one of only ten such covers flown, trivial env. faults, an enviable showpiece (Sieger 409N, € 1’250) (Image)