Many of the illustrations for these envlopes are First Flights. The envelopes were made for Air Mail going across the Pacific and the Atlantic Oceans and were used for First Flights in that direction and in some instances First Day Covers.


The following two designs have always been associated with the Trans-Pacific or Atlantic flights in my mind, especially the Pacific. While there is no text indicating such on either of them, over the years I have seen them used for many such covers.

Airmail Envelopes

Problem Envelopes

Interesting Foreign Envelopes