First Day Ceremonies - free and open to the public, provide background information on why a stamp is being issued, a free souvenir of the event, and usually an opportunity to get autographs from ceremony participants.

Show Cachet - World-renowned stamp designer Chris Calle has created the official APS StampShow cachet for 2019. These specially designed, hand-cancelled envelopes will be available for sale. A stamp designer for several countries, Calle is credited with designing more than 200 worldwide postage stamps, including twenty-five for the United States Postal Service.

Calle will be available for autographs at the APS Booth.