It is Kralik, now I've checked. I got too curious myself. It's called "Gloria". How delightfully appropriate for your gorgeous amaryllis.

Your vase could well be Kralik, John. 😊
www.kralik-glass.com

I think it's absolutely wonderful. It's not compulsory, but it is very much what I want.
It is a strong indicator of the true horror of ME finally being recognised.