TAM RSA Postage Stamps
The postage stamps for the celebration of the RSA were designed in dark blue (almost Black). So on colour they work perfectly like this.
Detail of an outgoing envelope to Cascadia Artpost in USA.
The TAM Rubberstamp Archive started in 1983 by sending out the first sheets into the network Ruud knew then, and is now over 32 years old. Still more contributions come in and only rarely the normal public can get a glimpse of what the archive contains. Several documentations about this archive are previously made, and online a large catalogue is available. (You can find an overview of all important details mentioned in previous publications (see also www.iuoma.org).