1932 (21 May) Do-X stationery envelope and card, each with a DoX cachet, canceled 21 May 32 and "Percu 6" and "Percu 4" handstamps, each with Berlin arrival pmk on back, v.f. ("owing to a shortage of stamps in the ship's post office it was impossible to affix stamps to all the pieces. For this reason the mail clerk affixed a rubber stamp reading as follows: For Letters Affranchisement Percu Rm.6- and for cards Affranchisement Percu Rm.4). This procedure is in accordance with International Postal Regulations and shows that the postage has been paid.") (Image)

Est.$250

1932 DO-X flight, specially prepared cover to Berlin, with "America Europa Flugschiff DO-X" cachet, cancelled "19 Mai 32," v.f., with arrival pmk (27 May) on back (Image)

Est.$150