Yes, this is referred to as a posy bowl, for obvious reason.
It would have been blown as a bubble, then opened out, spun and manipulated in a number of stages to form the shape, going back into the glory hole regularly. A variation of making a charger/large plate, but with a reservoir for water - and skillful glassmaking.
These generally date from the 1930's, but were made into the 1950's.
The green doesn't look uranium to me; does it go bright green in black light?
Nigel