Bookbinding (Postage) Stamps

Bookbinding has even made it onto stamps. Below are examples from my collection from Germany, France, and most recently Canada. Enjoy!

I remember having to learn how to program one of those fancy guillotines to take an A0 sheet (1 square meter) down to a postage stamp. The little dots on the triangles protruding from the cutter are optical sensors to stop the blade if someone reached in. We learned how to circumvent those from an instructor missing a few parts on his fingers hier und dort. We listened when he said, "don't ..."