Looking up 'Moderne' on the internet the other day yielded this image which I like. Moderne, I learned, is a style that appeared at the end of the Art Deco period.
According to the all knowing, all powerful Wizard of Oz (read: Wikipedia), "its architectural style emphasised curving forms, long horizontal lines, and sometimes nautical elements." Mentioned in the article was the Long Beach Airport and clicking on that link brought up the article with the logo.
The logo was cool.