This is a beautiful sheet consisting of 4 stamps, issued in 2007, displaying a variety of bats. Included on the sheet are the Yellow-Winged Bat, Schlieffen's Twilight Bat, Franquet's Epauletted Fruit Bat, Persian Trident Bat, Egyptian Fruit Bat, Commerson's Roundleaf Bat, and the Egyptian Slit-Faced Bat, among others. The sheet is Michel catalog #3628-31, and is Post Office fresh, mint never hinged.