I bought this vase at the market this morning, quite confident it was from one of the Sklo Union factories. But I've looked through Jindrich's Czech Glass DVD database, Marcus Newhall's catalogues, and my CGR notes, and it's not to be found anywhere. Perhaps I was mistaken?
The vase is quite interesting. It is 12cm high and 10,5cm wide at the top. It weighs 603g. The lower body is slightly bulbous, tapering in towards the bottom and top. The inside rim of the base has got zigzag teeth.
I hope someone recognises it. Thank you for looking.