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A nice neat weight, but I am not sure it should be thought of as a 'pioneer of design', given the tremendous range of millefiori paperweights that various French factories (and Bohemian, and English, and American) were making as much as 80 years earlier. I am pretty sure that many of Paul and Salvador's designs were based on the Belgian / Alsace / French / Bohemian pieces that they saw when they were based in Paris around 1914. That includes the harlequins, spiders, sulphides, and some of their lampwork and millefiori designs.
Alan