Ok, I'll stick my neck out and say this is by Salvador Ysart.
The base shows some signs of "typical" finishing seen on other work by Salvador. The "powdery filigree" (for want of a better description) is also known in some other items that are most likley by Salvador. The central cane certainly appears to be an early "Ysart" one.
And I know of a Pansy weight that has features tying in with work by Salvador and it has a rather squashed looking flower with a central millefiori cane, three green leaves and a green stem, all of which are not of the best visual quality.
I also know of an unusual closepack weight with definite Ysart canes and an applied clear vase element having a 20-rib double-twist "powdery filigree" design. Under UV it ties in with Ysart Brothers or earlier periods and therefore most likely by Salvador Ysart!
But I won't say Ray's weight, or the Pansy weight, or the closepack with vase section, are pre-war or post-war as I really don't know.