The "Dodo-Postcards" watermark is NOT on the actual card – it is an online watermark only.
PTT Museum. Postal Relay Station. Johann David Grundmann. Martigny
PTT Museum. Postal Relay Station. Simplon Dorf
PTT Museum. Postal Relay Station. Vevey. 1850
PTT Museum. Postal Relay Station. Vevey
Loading Mails at Euston Station. National Postal Museum. Grace Golden. ARCA
