Michel 143-145, 180-181, Scott C1-C5, Afa 144-146, 181-182
JF-item: 518592
1935. DANMARK. Air Mail. Complete set (5 values) on R-cover LUFTPOST to Luzern, Schweiz from KØBENHAVN 6.6.35. Transit and arrival cancels BASEL FLUGPLATZ 7.VI.35 + LUZERN 7.VI.35.