This is a beautiful sheet of 16 United Nations stamps featuring endangered species. The stamps are in mint never hinged condition, and the colors are vibrant and multi-colored. These stamps are a great addition to any stamp collection and are perfect for those interested in worldwide stamps and United Nations themes. The sheet was issued in 2017 and is graded as ungraded. The certification for these stamps is uncertified. Don't miss out on this fantastic item for stamp collectors!