Prev Next Category: Envelope Bonsoir Bonset - Mail Art Project 1981-09-29 Marco Sansoni, Italy Section: Mail Art Network Sent from: Milano, Italy Medium: Printed matter Category: Letter, CFP, Envelope Dimensions (cm): 29.7 x 21 Pages: 2 Notes: 50 years anniversary of J. K. Bonset, pseudonym of the Dadaist Theo van Doesburg Subject: marco sansoni