u/Irignation

I saw an interesting bow for sale, labeled E. Sartory A Paris. How to tell if it's a fake bow or not? Any telltale signs to look out for? Obviously the feel of the bow is the most important thing, but considering it has very old hair and I don't really have an opportunity to try the bow out with newer hair, it's hard to tell how it functions.

Any bow experts here? :)