Hi- Mae West looks similar to one I owned but she usually creates a big circular motion around the "M" in "Mae" and the "W" in "West. I'm not experienced enough to know how her signature has varied throughout the years though. I DO know my Dietrich sigs however, and I'm confident in saying that your Marlene Dietrich is 100% authentic. Below is an example of the many that I own. Good luck.-Syren