Help identifying amberina tumblers - Fenton?

[duganjcw]

I'm looking for help identifying these diamond optic, amberina glasses. They are unmarked. On another forum, a respondent to my photos said they were not Fenton. However, I then found what looks like this shape in a book of early Fenton. Also, they are in Glass Lovers Database listed as Fenton 1502, produced 1927-1931. Thank you in advance for your help.

[duganjcw]

If I could ask this, and hopefully tactfully, is Glass Lovers Database a reliable source for accurate information in your experience?
Thanks!

[gabla]

The folks who participate there are knowledgeable and active in other research sites and FB pages. I like to double check if possible as the "experts" do not always agree or sometimes even see a item in the same way.

[duganjcw]

Makes sense. Thank you. I appreciate the help.