I'm looking for photographs of chemistry classrooms (and associated laboratories), preferrably college/university level although high school would be ok. I'm primarily interested in pre-1950 photos, especially pre-1925. I've found a fair number by searching Google images and the Library of Congress. Of course, the vast majority of those are photos of American classrooms. I'd love to find some UK and European classrooms but I'm kind of stumped as to where to search. Does anyone have suggestions? Thanks!