This is a group of 2 souvenir sheets and a block of four stamps issued by U.S. philatelic organizations. Included are:

1.) American Philatelic Society 54th Annual Convention and Exhibition, September 25-29, 1939, San Francisco

2.) American Philatelic Society 56th Annual Convention and Exhibition, August 19-23, 1941, Baltimore

3.) Precancel Stamp Society 60th Annual Convention, August 5-8, 1981, Columbus, Block of four

Condition of these items is generally Very Good Plus, MNH, though the San Francisco sheet shows a little smudging to the selvage on the face, and a small disruption to the gum on the rear. Please see my other cinderella listings.