This was in a small lot of paperweights which I bought at local auction, though it was not the one I was after. It is 3 inches in diameter. It is difficult to describe because the canes almost give the appearance of having been applied to the inner surface rather than being 3-dimensional. does that make sense? Similarly with the ribbing effect - the outside is a smooth dome as with most paperweights. The ribbing effect is internal.Can anyone help ID the maker, please.