Thanks a lot, m!
Yes, I came across the site about Lichtagova (great little essay by Jindrich!:) )
I may have got the numbering from the Sypka catalogue wrong, it is from the one entitled "Czech glass, a private collection part II")
Here is >> another one on Austrian ebay
, same shape and height, with a firepolished rim as well; the glass in both of those looks a lot
thicker than in mine, that is why I wonder if the cut and bevelled rim in mine might be original rather than cut down.
And I would guess that the difference in the shape of the rim might be due to hotworking (the upper ring might become less pronounced that way?)
I don't know if it is clear in my pics, but mine is cased, the two evenly thick layers are quite obvious in my pic of the rim: an outer layer of colourless pulegoso glass, and an inner layer of brown/orange speckled (also) pulegoso glass.
Colours are a little bit dull, but I love the shimmering pulegoso, too
And as it is quite transparent due to the thin glass, it looks really lovely when backlit.