It's November 1931

So new that its hangar has yet to have the identifying Pan American name painted on it, Igor Sikorsky's big flying boat, the S-40, provides the massive platform for Pan American's Dinner Key base personnel, who swarm like Lilliputians on and around the massive new American Clipper.

(Courtesy of the Jahnke Family Collection).

The First Pan Am Clipper: Sikorsky S40 at Dinner Key 1931