Stamps from Mathematica
In Heinz Klaus Strick's biographies (see THIS LINK) he usually has a postage stamp as a portrait for the subject. In the case where there is no suitable stamp he has designed a stamp from the (fictional) country of Mathematica. These stamps are shown below.
The drawings are by Andreas Strick.
Click on a thumbnail to see the full image and on the link below the picture to go to Heinz Klaus Strick's biography (if available).
The drawings are by Andreas Strick.
Click on a thumbnail to see the full image and on the link below the picture to go to Heinz Klaus Strick's biography (if available).