Rubina verde group - early submerged / somerso

Having a sort out is a good thing for getting the mind going. So here are some I have previously posted and a couple of newbies in the same early submerged décor but wildly different shapes.
The middle one is slightly more amber-pink than the others, but I think that's within expectations for this colouring.
Similarities? All mould-blown, all footed, all ribbed, all have the submerged green colour unevenly pulled up through the vase to varying extents, most obvious in the hobnail vase on far left. Additionally, all the rims are smoothly ground but not polished and are chamfered.
Do I think they are Kralik? Heaven knows! The size of the taller ones is certainly reminiscent of the massive range of sizes up to one metre in the only Kralik catalogue known, although they seem to be in multiples of 10cm. So if I had to bet, I would say no.
They are from left to right, 21, 20.5, 35.5, 37, and 20.5cm. The hallmark on the only collared one is for London [RP] (Robert Pringle and Sons) 1911. I could hardly believe that as well, but it is definitely a curly and not a gothic "q" differentiating 1911 from 1931.
The others were likely made over the subsequent 20 years.