Here is a size Group WSE-3 brand new unopened pack of Showgard black mounts. Contains 3 mounts for 3 US souvenir sheets. See packaging description in pics for contents.  These are first quality mounts recently purchased direct from the manufacturer. These are not seconds or someone's old stale leftovers found in a collection box. Buy the best for your stamps. Made in Germany. See my other listings for many different sizes.