I have had several Avondale weights like this, none of which I would say were sloppily made and have sold them to Americans and Australians as well as people in UK, all for at least £10 and often for more. They had their clear label with the gold glassblower on them and the Avondale Glass Pembrokeshire name on them.
They also made Toadstools (Mushrooms) very like the Wedgwood ones and many of their animals have been indistinguishable from Wedgwood, daveweight is absolutely correct, the Wedgwood quality is echoed well in the quality of Avondale glass, it is very good indeed.
I have many of their elephants, including some of the older ones and wouldn't trade them for the world.