"Frankering Gecontroleerd" is a project on how to send a secret message. Instead of creating a secret language I wanted to focus on the transportation of a secret.
After doing some tests with stamps printed with a regular printer, I did some research on real stamps. I found they have a phosphoric layer on them.
By silkscreen printing with glow in the dark ink, which is also phosphoric, I could create almost blank stamps that get accepted by the scanning machine in the postal system. Us humans can see that these stamps are totally fake, though. So the secret in this case became the inauthenticity of the stamp itself. A secret for the machine kept by us humans.
In addition to the silkscreen printed stamps I also made a toolkit in the form of a plastic stencil that can be washed clean after use, send in an envelop and be used again to spread the secret.