Here's just a little comparison to show the different flavors and tone colors available within the pre-WWII swing guitar range. 

Here's an example of a solo version of "It's Only a Paper Moon", in the Allan Reuss/George Van Eps-style:

And here's an example of some Charlie Christian-style electric, single-note playing on "It's Only a Paper Moon" over an acoustic Freddie Green-style swing rhythm guitar track:

Cheers.