Stamps of PANAMA
Air Mail Varieties
* The following catalogs were used for reference:
Sa = Sanabria
Sc = Scott
If there is a "v" in between the catalog number and the letter is unlisted. If the "v" is after it, its a varietal.
Sa-2a Tail on flag of right "5"
Sa-3a Inverted Surcharge
Sa-3b Reversed Surcharge
"Veinticinco centesimos" doubled
Sa-3bv Reversed Surcharge