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Hi Roy.
Interesting - a year or so ago a Swiss collector sent me some images of a different facetted paperweight filled with millefiori canes, not unlike your image in terms of overall impression. I got some close up images, and the canes were complex, well made, including some shard roses...but not like any with which I was familiar. I don't think it is from the same source as yours, but odd that they both turn up in Switzerland.
I wonder whether the one you show might be early Saint-Louis? I have an early close-pack with fairly pale canes.
Alan