Hi,
Wish you the best finding some information. I have a very similar piece to yours (same opalescent glass and foot, just a slight difference in the shape of the handles)
I also recently picked up a huge piece with a near identical foot but in vaseline. I thought it may have been Cenedese given the colourway but they have recently confirmed it is NOT Cenedese. I've attached a couple of photos to see if you think the foot is similar?
I'll also be looking for information, so if I find anything, I'll let you know.
Cheers,
Brendan