Hi Leni & Max,
Yes, 1930s is the correct period for this style of Chinese weight. The yellowish glass is quite typical as are the rather better setting of the canes. Another feature is that the domes tend to be quite low.
Also yes, the quality of the setting earlier Chinese weights was better than modern ones - although improvements are now being seen.
There are some good varitaions in the designs of 1930s Chinese weights, including garlanded Flowers etc., in the antique French style. Not surprising really, because an Amercian importer is said to have started the Chinese line of copies of antique French weights :!: The best examples are often quite expensive now as they have become "collector items" in their own right, particularly in the US.
As for a particluar maker of the 1930s weights, I have not seen this stated anywhere, but perhaps one day somebody will track down the full story of the American importer and the source of the pieces.
Leni - I have no idea what the "Y" means on your weight. But just imagine if an example was found where the "China" part was wom off completely, leaving just the "Y" ... I can see the ebay listing now, "Rare Salvador Ysart paperweight with previously unrecorded canes". :lol: