Hi Rorus,
[Please note, Sophie posted while I was typing. ]

I see that you have now posted here in the Paperweights forum and have added pics. Well done for getting this far.
I now ask that you post two more threads, one for the left-hand weight in the pics and one for right-hand one. This will help to make sense of things if we suddenly find many comments are offered for each of the three items. Otherwise it can get confusing.
We can keep this thread for the Buterfly weight - which I can confirm is a "3D Floating Butterfly by Salvador Ysart".
You do not give sizes, but these "Salvador Floating Butterfly weights" are usually around 3.5 inch in diameter and nearly as tall. They are still in the "uncommon" category and, as part of the output of Scottish Ysart work, are highly sought after by many collectors.
The pattern of your weight, with a green centre then a space of clear glass with a surround of two rows of millefiori canes, is quite typical of several other examples. I believe that the majority of "Salvador 3D Floating Butterfly" weights were made at Ysart Brothers Glass works (trade name Vasart) in the period 1946 to early 1950s.
A general search on the imtermet as well as within this Board, will bring up other examples. for instance, a couple of interesting threads for some years ago are:
Salvador Ysart Butterfly Weights. Where are They?lovely butterfly (Sadly, eBay pics not now available.