Quote:
Once I have finished cataloging and storing my US
Well, shall we say 1-2 years?

I am still working my head around the Panama thing,
I am trying to understand the air mail link, and how
it all worked.
I am assuming mail from Australia went
Australia > New Zealand > Panama (circa 7000 miles) by vessel
then US mail covers flew to San Francisco.
but it's all guessing at the moment.
The Panama stamp can be explained as it was posted aboard ship,
and either the Purser had Panamanian stamps, or the sender
bought ashore in Panama.
Cheers