Description
Austrian airmail issues 3 x 6gr, 2 x 5gr, 2 gr + 40g definitive (SG 583, 616, 617, 618); all cancelled Vienna I d/r bridged cds 29 September 1925 to Bern; with extra cds 30 September (with blue crayon tick); m/s and h/s Flugpost; no b/s; attractive airmail cover