I found this with tons of pages of armor, and thought I would share. http://forums.gamesquad.com/showthread.php?104031-WW2-Photos
Post #4, first picture of the Chaffee. Great picture. Rarely seen a Thompson in that configuration. No butt, wood rather than hand grip. Damn, would love to fire a mag off on one of those.
Another bookmarked page. Not being very familiar with various types of armored vehicles, this page will be a big help.
The one on the tank only had the wood rail grip. First time seen it like that. ..What a work of art. Too bad they went to the grease gun. Probably a lot cheaper to produce, and doubt it was near as effective.