Some strains and discoloration — and dings and nicks.
All ephemera has wear commensurate to age, including, potentially: nicks, folds, foxing, smudges, rips near edges and fold lines, stains, old smells, minor rips at folds, small holes, and other imperfections. You get what you see :)
Our research notes indicate our best efforts but are not guaranteed to be 100% accurate.