Notgeld Ströbeck ½ Mark 1922
Emergency money (½ Mark) from the chess village of Ströbeck 1922 (Photo by IliazdCC-BY-SA 2.0)

I offer a couple of online services on my website and some small open source projects on GitHub for free. Nonetheless I have costs for maintaining the technical infrastructure and specialist literature. Therefore a donation would be much appreciated. Any amount will help!

Donations 1