This is an unused set of 12 matte-finish charcoal art cards, 4-5/8″ x 7″.  We want to point out that the cards and the cover use the terms “World Heritage” and “Patrimoine Mondial” and “World Heritage List” (31st such site in China) but the name “UNESCO” or “United Nations” does not appear.  Just so you know!  Grade: 1