More and more young people, designers or simple design enthusiasts, are interested in the works of Franco Grignani.

In this video by Emanuele Abrate, you can learn how to recreate his famous Woolmark logo of 1963.

It is said that one day at lunch on the white tablecloth with the tines of his fork he drew a rotation with arches: that is the idea of the famous “wool ball”, shown by this video.

But if you overlap it with the original logo, you will notice something slightly different. Can you find it?