The four-day event includes three World Series of Philately exhibitions, including the Americover one devoted to FDCs. The Grand Award winners of the Americover exhibition are eligible to compete for the WSP Champion of Champions trophy as the best exhibit in North American philately.
Americover at GASS also features the most FDC dealers of any show in the world, both in its main bourse and its cachetmakers bourse. The latter is by far the biggest and busiest cachetmakers bourse of the year, as FDC producers showcase their latest efforts. There is also a silent auction of first day covers and each year, the Cachetmakers Contest awards are announced at the show.