https://www.artpool.hu/MailArt/Cavellini/Cavellini_1966.html
G.A. Cavellini (I) operation round trip (1980)
G. A. Cavellini operation round trip
g around tripcavellinioperation
https://vanabbemuseum.nl/nl/collectie-onderzoek/bibliotheek/publicaties/guglielmo-achille-cavellini-1946-1976
Guglielmo Achille Cavellini 1946-1976
guglielmo achille cavellini
https://iuoma-network.ning.com/group/cavellini
Cavellini - International Union of Mail-Artists
Guglielmo Achille Cavellini Guglielmo Achille Cavellini, also known as GAC (1914 - 1990) was an influential Italian art collector and mail artist.
international unioncavellinimailartists
https://www.artpool.hu/MailArt/Cavellini/Cavellini_1985.html
G.A. Cavellini (I) operation round trip (1980)
G. A. Cavellini operation round trip
g around tripcavellinioperation