I have some questions regarding the following cover, and I hope the Australian professionals here would be able to shed some light
1. The cover was posted from Papua New Guinea to Cyprus using an Australian stamp. Was this common practice?
2. Would this be a 'real' commercial cover, or a philatelic creation to a stamp collector? I am not sure if the addressee (a Warrant Officer) and his address (an army base) have any bearing on this, but I thought 5 shillings is a huge sum for the postage cost of a letter to Cyprus. I do not have the postal rates for Papua New Guinea and so I am not sure if the 5 shillings stamp paid the correct rate.
3. Why are there so many postmarks (5 of them!) at the back of the cover? In my collection of Prexies 3c covers, I see this happening only for redirected covers, but this does not seem to be the case here. I can read the following (the postmarks are surprisingly very clear except for the last) :
a) Port Moresby, Papua New Guinea - 1 Sep 1949
b) GPO Sydney, NSW Australia - 5 Sep 1949
c) Registered, Nicosia, Cyprus - 12 Sep 1949
d) Registered, Famagusta, Cyprus - 13 Sep 1949
e) Field Post Office - 14 Sep 1949 (and A55? I could not make this out)