I’d pointed folks to some Life Magazine photos of Worcester State Hospital, and I’d now like to point out some photos of Higgins Armory.
You can find a bunch at the top of this page and at the bottom of this page (where you can also see plenty of pictures from a sculpture exhibit at WAM).
Of especial interest are pictures like this and this, which will leave you reaching for your white gloves and wanting to give the folks a good talking-to about how their hands have oil and salts that can permanently damage the armor.
(You may also enjoy this Higgins photo from — of all places — the Weekly World News, and this Rotarian article from 1956.)
(Image: Armored Dog, a Creative Commons Attribution-NonCommercial-NoDerivs 2.0 image from Adam Rose’s photostream.)