I've been all round the houses on this one and so far I've not come up with even which country

I thought perhaps Nazeing Bubbly range hence my previous question, as the effect looks very similar to a cylinder shape vase in 20th century British Glass page 106. But I'm not sure of the colour nor the pontil mark which is left rough but smoothed, not sharp.
The bubble effect is very similar to Peill and Putzler I think but the one without the black bits in. I found a piece in a turquoise ish blue that was a possible attribution to P&P But then wouldn't it have had a polished pontil mark or ground base and be marked? I also found a Theriesenthaler lead but I couldn't find anything to compare with. The wear on the base is so extensive that if there were any marks they would have been worn away.
I'm pretty sure this isn't new. It's very careworn, but despite all this it looks fantastic. The bubble effect is gorgeous.
The sides at base level curve gently round to the base, it's not been ground flat, and there may or may not have been a slight ground ring to ensure it sat flat. I can't tell because of the base wear. I did wonder if it might have been Italian maybe?
Measures 7cm high and about 17.5cm at its widest. Any avenues to explore much appreciated.
thanks
m