I'm going to say VF20 as a guess due to condition of the rims.
I would need to see the crown band and pearls in more detail to be sure. It the center diamond isn't intact, that would conservatively put it as a gF/F15. If I'm off-base here, let me know.
Update: I dug up photos of my 1922. I'd call this a VF35 because pearls 7+8 are worn away (just left of diamond), possibly a weak strike here too.