Faking It: Manipulated Photography Before Photoshop

[TheAlex]

This is a current exhibition in New York, but it looks like all of the images can be seen here:
http://www.metmuseum.org/exhibitions/objects?exhibitionId={36D81705-241D-4934-AB02-FD7C8DBBB3E5}&pg=1&rpp=20

So there are plenty of examples to send to people who still believe image manipulation didn't exist before Photoshop...