The Cats on Stamps Study Group, as well as the Penguins on Stamps Study Group are just two of the more than 40 specialized groups and societies that will take part. Others include the American Numismatic Association, American Association of Philatelic Exhibitors, China Stamp Society, Ebony Society of Philatelic Events & Reflections, Institute of Analytical Philately, the Military Postal History Society, Sports Philatelists International and the State Revenue Society. For a complete list of participants, click here.

Bourse Dealers, Societies and Organizations

For the most up-to-date listings and booth numbers, please consult the show program at the show or click here. All participating dealers are members of the APS, ATA and/or AFDCS. An asterisk (*) indicates an APS Dealer Member. A smiley face indicates the dealer caters to beginners.  Dealers marked (Dollar) are dollar booths, where the max price for covers is $1 and stamps are max 50¢. 

Numerous societies, associations and clubs are scheduled to have booths and/or meetings at GASS. While this list is current as of the publication date, the final list is subject to change. To get the most updated version of the list click here. Please also consult the show program at the show for up-to-date listings. *Those marked with asterisk (*) are hosting a Society booth and may have meetings/activities. Those without are hosting just meetings/activities.

Additional information on GASS which is free and open to the public is available at stamps.org/GASS.