These pictures were taken in Columbus, KS on 3/31/2010. I find it interesting that friscobob caught the same gondola with a different crane: http://www.frisco.org/vb/album.php?albumid=13&pictureid=446
The gondola seems to be one of the 61000-61899 series gondolas, 52' 6" long with drop ends built 1949-1953 by Pullman-Standard to a Greenville design. In HO scale, there was once a unbiquitous Proto 2000 model of this style car. Rich