- UNTITLED by Erik Satie (France), c1900
- PAX by Michael V. Hitrovo (Russia), c1937
- BLUE STAMP by Yves Klein (France), 1959
- FLUXPOST DIY12W706401964 by Robert Watts (USA), 1964
- STEPHEN FOSTER by Dana Atchley (USA), 1968
- "There's no turning back now." by Nelvana Limited (Canada), 1972
- UNTITLED by May Wilson (USA), c1973
- BAJA by Robert Fried (USA), 1974
- AMIS ET AMANTS by Donald Evans (USA), c1974
- CANADIAN CULTURAL POLICY by La Groupe des Beaux Arts (Canada), 1974
- CANADADA $1000 by Edwin Varney (Canada), 1976
- RANDKÜNSTLER by Bálint Szombathy (Yugoslavia), 1978
- geORge POST by George H. Brett II (USA), 1979
- COW ART 4 by Patrick Beilman (USA), 1979
- COMPONENT EAT by E .F. Higgins III (USA), 1981
- ARTISTAMP by Thomas Michael Bidner (Canada), 1984
- Bidner 'coined and copyrighted the term 'Artistamp' in 1982.'
- FOR THE PEACE by Marcello Diotallevi (Italy), 1984
- TECHNOLOGIE MACHT FREI by Citizen Kafka (USA), 1985
- LAST MAIL ART SHOW by Mark S. Bloch (USA), 1986
- CANADA 86 by Barry Andrews (Canada), 1988
- JUMPING PHILATELY BATMAN! by Michael Leigh (United Kingdom), 1988