Thankfully there's acid-free tissue around the print, but it is tan with acidification. It's taped with SCOTCH TAPE to an acidic cardboard back and mat! Artist's name and identity of print are written on ink on the front of the acidic mat. Hardening masking tape holds two pieces of cardboard together. There are water marks on both pieces of cardboard. Marks and ripples on the print indicate that it also was subject to moisture. Acidic materials should be removed.