Got it, thanks Nev.
I'm getting confused as I (currently) have a similar goblet too. I've promised it to Keith and just had to unwrap it to check it again.
No lozenge. It's very, very like the ones Nev and Keith show, and the other pattern shown in the link, but it isn't.
The base of the stem is slightly different. The part which flares onto the base is bigger, and the foot is wider than the bowl
The ones shown have a rondel in the centre of the loops, this has a more petal shape which extends to the bottom and the shape there is flat - a straight line in the mould.
It was made in a 3 part mould, faint mould lines on the base only.
It also looks as if the shape of the bowl is more straight and upright, the pics here show it to be slightly flared?
It's an ancient thing from a family cupboard.