What a great memento! I agree, a shadow box backing it with an acid free
background would be best. It doesn't have to be deep. And. you are not
worried about the value ($$$$$$) so it can be attached with silicone.
I went a few years ago, in Boston. We sat up in the balcony and helped unroll
the paper rolls at the end. I saved many feet of that paper to draw and
paint on.
