PROBABLE VINTAGE EGERMANN VASE (possibly maybe?)

Hi Collectors. I found this beauty on eBay 2 weeks ago. The seller is very cool and I liked chatting with her but unfortunately she doesn't' know much about the piece. It has all of the earmarks of vintage Egermann, but alas, no tag or sticker. I have a few other pieces with the same pattern and one is a bonafide Egermann, so I am confident this is too. Does anyone know of a website (other than Egermann) where I can see vintage Egermann pieces? I really want to learn as much as I can about this rare pattern but cannot find any decent sites covering Egermann. Thank you for your consideration!