This is a stunning sheet of 50 stamps, issued by the United States in 1979. It features endangered flora and depicts persistent trillium, Hawaiian wild broadbean, Contra Costa wallflower and Antioch Dunes evening primrose. It is Scott catalog #1783-6, and is mint never hinged in pristine condition. NOTE: Photos for all US sheets are stock. If you are looking for a particular position, please let us know, as we have multiple sheets for many of the items.