Fun Local Real Estate History - Part 1 - Question at the Bottom

I know we all love looking at that amazing piece of suburban history - the development of the Levittowns.  Everyone in the photos look like they just fell out of an episode of Donna Reed or the film Edward Scissorhands. 

Did you know there is a Chicago-area connection to Levittown?
(Ok, I know you all know probably a zillion connections but the one I am looking for has to do with a Lake County community.)
This picture above is not an east coast Levittown.   It is a very early Buffalo Grove.  Yes, the Levitt Company built large pieces of Buffalo Grove.   Does anyone have their home's original plans or photos of Levitt logos on any parts of their homes?  Post them because I'd love to see them.   Thanks!