Several of the aircraft depicted can be found on the following website (and you can practice your tango steps at the same time).
http://www.geocities.com/bacosistemas01/
Attached is a photo of one of the North American NA-34 trainers in somewhat better shape. This is an official NAA photo, but was snipped from an old magazine article.
Doug
PS: These photos are, in my estimation, vastly overpriced and have been posted by at least two different people over the past year or so.