In almost 30 years of collecting, buying and selling, I have never come across Adam Jablonsky's work.
The Corning Museum of Glass has a huge collection and the fact that one of their curators may have purchased some of a given artist's work at some time or other is always nice to know, but it is not necessarily a validation of that artist's work. Many museums purchase not just for aesthetic reasons but for archival purposes..so that their collections show at a later date who was doing what. (In the British Museum's collection of 7 million artefacts, over a million are flints!)
The Corning Museum of Glass also has a fairly substantial gift shop which sells glass by artists from all over the world. Some artists and their publicists gloss over the difference between the shop and the museum itself when talking about Corning's purchases and even when they make the difference clear, once the information becomes secondhand or sub-edited it may be overlooked.
Gold medals:there isn't an international standard for these, which is probably why you don't see people like Chihuly making reference to winning them....if they mean that much you would expect him to have won a few.
I don't intend to be negative. I know some of you think the stuff is fantastic, but I'm afraid I'm with Ivo.
As for LSA - they are a very professional sales led organisation who in recent years have employed young British designers to work on their ranges. As Ivo says, they then sub-contract the production to various factories in Poland. They are only one of a number of companies dotted around Europe who work this way, but they have recognised the advantages of creating a brand..LSA..which they have marketed as a recognisable style....you'll find their adverts in Elle Deco, as well as a lot of editorial publicity. Do not be under the misapprehension that their products are rare, however, as their output is considerable, which is what one would expect from the very reasonable prices. We are talking at least hundreds and more probably thousands of units of each piece.
Speaking of thousands, the Krosno tumbler you are looking for, Peter, is probably one of tens of thousands produced in the seventies and eighties and imported into the UK. But this just shows that mass produced quantities can become rare...people bought them, broke them and suddenly there aren't any around....I haven't seen one for ages.