Hi Kev, thanks for your input too, Richard More was kind enough to contact me directly and steer me towards some of his pictures for further guidance, his feeling was that they were Vasart, possibly in the earlier Ysart period for the first one, a bar tool for the second (although as you say, the canes could be earlier - I found the central cane on an earlier Ysart concentric on his pages, but I agree that means nothing in terms of the overall age of the weight), early Strathearn for the last one, so I've kept the middle of the fence referring everyone to here, the Ysart pages and the sections that Richard suggested on his listing. Hopefully that should be sufficient information for people to make their own minds up as to what these are.
Ultimately, they are nice weights! I like them, especially the little one.