If at first you don't succeed...

try, try again. Thanks to J, who turned the picture, so the Euler is now correctly positioned to follow the path of his calling, you can see him a bit better. If you are wondering what that strange, ill-fitting rag on his head is, be assured that it is a turban (pre-wrapped for quick costume changes in the theatre). Evidently people of Euler's age and social position were intrigued by all things Indian and so imitated Indian dress. The trouble with our contemporary Euler is that his head is too stuffed with math facts and he's never worn an ordinary hat size. Therefore, the turban was too small to fit as well.