I’m not an expert and at first I thought it might be ok but as I looked at my example and a few others on eBay I have some doubts, it looks like it it’s been slowly written but I could be mistaken so please wait for other s to chime in, I really hate to call it not authentic when I’m not as familiar as others on this forum might be with her signature so my non authentic opinion is a novice one with just a very little bit of studying I did just recently for you,