Do you ever go to Rait, Gary? You might find some interesting things - worth a look at, even if not buying.
There's a big, footed Nazeing cylinder vase in what I think is the same colourway as this (it's labelled Monart, but priced Nazeing). There's a Vasart bucket vase, in a pale white, with a whole load of green aventurine in it.
There is also a green (cloudy) Monart plate in Faircity antiques in Perth, labelled and priced as Strathearn.
(We didn't buy it.)
Bradbury - Gary knows more about Monart than I do - I'm a bit vague. My family collect it, but I don't, and I don't bother about looking at catalogues or learning shapes.