Official IUOMA postage 25 years celebration. on December 26, 2025 Artistamps IUOMA IUOMA Postage Litsa Spathi Mail-Art Netherlands PostNL Ruud Janssen +
A mail art approach to artistamps making on December 09, 2025 2011 Article Artistamps Ginny Loyd USA +
Artistamps (1993 and 1996) on December 04, 2025 1993 1996 Artistamps Ruud Janssen San Francisco Stamp Art Gallery USA +
Artistamps by Wacky Stuff on November 23, 2025 Artistamps Breda PostNL Ruud Janssen USA Wacky Stuff +