Quote Originally Posted by Richard Boutwell View Post
[…]position the pieces like you've shown, and then cut away the lower each print where the upper print overlaps so each piece fit right into each other on one final "layer".
I was afraid that might be the most likely solution. Blast. Time to get an X-Acto knife…

Quote Originally Posted by Richard Boutwell View Post
[rubber cement] will make a permanent bond as soon as the two dry … surfaces come in contact with each other
Hm! I wasn't aware of that aspect. I knew that contact cement would do such a thing. I've used rubber cement before, and I was always able to peel it off of the items it was joining. Will that still occur? If I mess up the registration, can I peel the photos off and try again with new backing/cement?

Thanks for the information!