Digital BW, The Print

I don't mean to be a contrarian, but I would be very careful with anything
you frame. There is a big difference between materials in the open air and
materials inside a "closed" frame. I also believe that those who discussed
prints mounted on shirt cardboard and corrugate and the like have been very
lucky to have prints that have not stained. If it was me, I'd at least get
some archival sheet to cover the back with. YMMV.

Rick