After Papua New Guinea issued its first own stamps and until it issued its own registered letters Australian pre-stamped envelopes did not loose their validity and contiued to be used in PNG. After 1. March 1953 PNG stamps had to be used on these Australian pre-stamped envelopes to make up prevailing rates.
Under close inspection, we note three varieties, that can be differentiated by details in the address field
RE3-1
• All dotted lines are aligned on the left.
The heavy vertical line is without breaks.
RE3-2
• All dotted lines are aligned on the left.
The heavy vertical line is is broken.
RE3-3
• The fourth dotted line is shortened and not aligned on the left.
The heavy vertical line is broken.
We would like to draw a list of registered envelopes that were properly used. Please help us by notifying examples in your collection with the following data
Thank you very much for your cooperation