Philatelic covers include mail from first airmail flight and first day of stamp issues ceremonies.
The first direct airmail flight from Spokane took place on September 15, 1929.
In its first year of operation, the Post Office completed 1,208 airmail flights with 90 forced landings.
Villa Bens was used as a staging post for airmail flights.
Henri Pequet, pilot, flew first official airmail flight in 1911 (died 1974).
The location was used as a staging post for airmail flights.
In 1920 he made the first airmail flight from Holland to England.
He later pioneered airmail flight over the Canadian Rockies.
This preceded the first transcontinental airmail flight by nine years.
Varney's first airmail flight took off on April 26, 1926.