I like these. They are fun!
I can match many of the canes to the work of the Ysart men from 1946 to 1955 at Ysart Brothers Glass (Vasart). And for the weight with the cruciform cane in the centre I would, by gut feel alone, say it was from those Ysart Brothers years.
However, the other weight, which again has "early Ysart" canes also has a distinctive yellow-and-brown cane which I have not seen in early Ysart work - although the central element of that cane does look like "early Ysart". If I am correct about that, then I suggest that this weight could have been made in the Vasart Ltd years (1956 to 1964).
The idea that these could be Strathearn has some validity based on that yellow-and-brown cane, which has an appearance of many canes from the Strathearn years. But the overall look of both weights shouts "earlier" to me.
Note that in the yellow-brown cane, the yellow is actually a solid rod. The use of solid rods in that bright yellow colour is known in some weights signed with a "JA" cane (for Jack Allen) and can be dated to the Vasart Ltd. period.
But now I have to think about the colour of the ground - which seems to be the same for both weights, although in one the ground is quite "patchy". Perhaps both weights were made in the Vasart Ltd years, or maybe the "patchy ground" one was made earlier and the other simply has a ground of the same colour; the colour being part of the same company stock (Vasart) but under different company names.
Even though Vasart Ltd used lead-based glass, the older canes (made with soda glass for the clear parts) were still used in the lead-based weights. In fact, as many folk know, early Ysart canes from the 1940s and even the 1930s can be found in items made at least as late as the 1980s!