"The gallery emphasizes that only artwork in professional-quality frames will sell. Bargain frames, home-made frames, and unbecoming frames will prevent the artwork from selling. Paintings on gallery-wrapped canvas should look finished in appearance. The ****** Galleries reserves the right not to hang any artwork that arrives in low-quality frames, is not wired for hanging, or is otherwise deemed unsuitable for appropriate display."
Sue...that's pretty standard, though that place really
lays it out.