wow, a lot of cool happening in this 1931-34 photo... a Sikorsky S40, at Dinner Key, Florida ... and a 5th wheel trailer on a Model A used as a taxi

the Red Top Cab company, I will have to look up and see if I can find more.

And that seems to be the Caribbean Clipper with PAA, the Pan American Airways system

this last photo looks like a Jack Vettriano painting
http://www.mission4today.com/index.php?name=ForumsPro&file=viewtopic&t=16352&finish=15&start=75

http://www.panam.org/about-pahf/paa-a-brief-history

take another look at a Sikorsky S 40 to see how interesting the tail section and frame is

http://www.mission4today.com/index.php?name=ForumsPro&file=viewtopic&t=16352&finish=15&start=225

Dinner Key was originally an island in Biscayne Bay, which was connected to the mainland with fill in 1914.

 In 1917, the Navy chose the site at Dinner Key to become the first continental Naval Air Station in the country. The base was commissioned the following year, and conducted flight training with 12 seaplanes and a single dirigible.

After the end of WW1, the Navy vacated Dinner Key, but the seaplane facility continued in operation by commercial operators. The New York, Rio and Buenos Aires Airline began service from Dinner Key in 1929. That airline was merged with Pan Am the following year. Pan Am operated an extensive route structure from Dinner Key in the 1930s.

in 1934 Pan Am put in an art deco passenger terminal

http://www.airfields-freeman.com/FL/Airfields_FL_Miami_C.htm