Sorry for delaying with this response, but I kept getting sidetracked from looking for info about weights like yours. I have now found what I was thinking about ...
2011 Annual Bulletin of the Paperweights Collectors Association, Inc.
Article by Paul Dunlop (pages 5 thru 10) titled "Who Am I? Part 2".
In the article, it is commented that the general attribution of "Bohemian" has been used for many weights of unknown manufacture, but that research has now enabled groupings to be proposed and "European Factory 8" has been used for weights with elements like yours.
There are two overall features that make me think your weight is one of those.
a) the colours and general form of the weight are very much in keeping with one shown as Figure 7 in the article
b) the distinctive central cane of your weight has colours and features that are very close to those shown in canes illustrated in the article as Figures 31, 32 & 33. This is especially true of the particular style of six-point stars set in an outer band of the complex cane.
I have not attempted to compare details of rose canes or other types.
Also, for info, there is a weight with the same style canes illustrated as "concentric 13" in the "Antique Bohemian" section of the PCC's 1999 Christies Exhibition. To locate, click here
then select "Events" from the menu and "Past exhibitions" from the drop-down list. Then scroll to the bottom of the page and click on "Index here" next to "1999 Christie's, London". Finally click on the link beneath "Bohemian" in the "Antique" section and then click on the weight "Concentric 13" for a larger image.
In summary, it is clear that the maker of many so-called "Bohemian" weights is still not known but that by building up groups of weights, further research may eventually be able to identify some makers (as has happened for the French makers St Mande and Grenelle).
Until then, your weight has no confirmed maker but is definitely of interest.