Thank you but I don't think I want to sign-up. I've only ever come across two pieces of glass with labels that I thought might be authentic, I would almost certainly have forgotten my pass-word before I find another one.
I've attached a picture of the label and one of the trough. I'm pretty sure I was told it was Stolzle when I bought it but have never verified that. Others who know Czech glass better than I do may or may not agree with the attribution.
The photo has come out with the legend and border looking as though they are black, probably due to the flash. They are in fact silver foil.