After the war, he learned how to make SecretBoxes from his predecessors. Ever since, he has made Secret Boxes only. There aretraditional mechanisms, but he usually created new ones. When he created a Secret Box with54 motions, people said, “we could see only 10 motion Secret Box in the olddays.” The old Secret Boxes were “one sided”. But, he has created boxeswith 2 sided motion, and raised the number of motions necessary to open. Now,he always plan even newer new ideas of how to open them.