One of the specialties of PNG are relief postmarks. These are used ....
Different types of relief postmarks were used in PNG. They are listed in the following pages according to places and dates used.
To identify the place where a relief postmark was used is not always straightforward. At times it is only possible with registered mail because of the information provided by the registration label and the transit markings. The reason is obvious: wrong dates occur frequently in PNG as the illustrated cover shows.
Correct identification of the post office where the letter was posted is possible thanks to the registration label and the transit postmarks:
The "RELIEF NR 5" postmark was used in Kainantu at the opening of the post office from 20.05.1953 to 24.03.1954. Thereafter the regular datestamp was used.