It is my photos which make it look wonky
. The foot is domed, not a HUGE dome but slightly domed nevertheless. It is 3" wide and is a bit wider than the bulbous bit of the vase (in your photos your's looks as though the foot is very slightly narrower than the widest bulbous bit of the vase??).
Oh, and it has a ground rim, the rim at the top of the neck, not the edge of the base as it were.(at least I think that's what you would call it, I am useless with terminology :spls: very flat rim)
It is not coated lattimo.
I have been searching other pictures and found one where there is a close- up and the slight iridescent finish look the same as mine.
many thanks to all for taking the time to discuss this, it is really appreciated and I am learning a lot.