I don't think you will get a specific id on this weight. But it will be good if you do! It's of a type that was produced in quantity in Germany, Silesia and Bohemia / Czechoslovakia sometime from 1900 to 1930.
Judging by the likely size of the folds in the net curtains, I estimate that the the weight is about 3 1/2 to 4 inch in diameter and almost as high. That would fit with much of the German / Bohemian etc work.
There's something about the way that the orange / yellow "bits" are set that makes me wonder whether it might even be from another country and perhaps a bit more recent. But that's only a feeling and I have no firm evidence to back it up.
Is it a Plam Tree? Might be. But most designs of this type are called "flowers", even if the petals are thin and do look more like a tree!
As for the "cracked effect", it is good that you like this. But whether it was intended as part of the design is open to question. I suspect it's a result of poor temperature control causing bubbling within much of the inner surface when it received the final gather to enclose the flower / tree.