Rose, my dear, please don't misunderstand me... it was only my guess based on what I've seen... it could turn out that it's not Krosno... I guess we'll have to wait for one of the many fabulously knowledgable people on GMB to pop in and set us straight.
By the way, I think I'm a bigger bubble-head than you when it comes to glass and the knowledge attached to its identification. But hey, at least we've got an eye for some nice stuff