I today found a photograph in my loft, approx. 12" by 20" in size, which was stored in a tube, but unfortunately rolled very tightly to a diameter of less than one inch. It appears to have been stored like this for the best part of fourteen years.
It was quite difficult to unroll it without creasing it anywhere, due to it's tendency to stay in this closely rolled shape. I would like to frame it, but there's no way to do that the way it behaves right now.
What can I do to re-flatten it properly? Time is not an issue to me, I don't mind if it takes a long time, but it would be really nice to get rid of that spring effect it currently has.