The green one is definitely a similar effect, but there are variations with the photography. I used a flash which has bleached out the degree of the mottling, but it is essentially made of the opaque green in a clear base, i.e. only the two colours.
With Ruth's green vase, is it the same, or is there some darker coloured glass in there too? It looks like it in the body, but is that just the darkness from inside the vase showing through? On that section of the rim where you can see through it, it looks similar?
Hey, the second wouldn't be nailsea, would it?
Hopefully Nigel will pop along and say for sure.