visible blemishes, such as spots, blotches, or discoloration cracks or dents in the surface uneven edges or lines unusual shadows or highlights dust, dirt, or other debris smudges or smears
imperfection which has visible blemishes, such as spots, blotches, or discoloration imperfection which has cracks or dents in the surface imperfection which has uneven edges or lines imperfection which has unusual shadows or highlights imperfection which has dust, dirt, or other debris imperfection which has smudges or smears