It looks fine to me.

They were not always consistent in how they finished things off - buttons were not put on things that were too finely blown to handle a thick hot blob being attached to make it, or it might have shown through and detracted.
If something has been carefully looked after or put in a cabinet (or cupboard) and left, they won't get wear.
If something sits on only a very fine ring of glass, wear may be on such a small, thin band, you cannot see it, but a fingernail run around the right area will find it.
How the colours are worked in Monart depends on who was making the piece, I seem to notice a certain refinement and subtlety in Salvador's work I don't see in the sons' and other workers' things, but can't tell the sons and others apart from each other.
The "thunky" ring sounds about right too.

Any sort of "fake" Monart is kind of already known about and came from within Scotland a good few years ago now. In it, the colours and shapes are are not quite right, and I think it was only produced for a shortish period. It was not the glassmaker who put the fake names claims on it, - so it all got a bit dodgy and lawyers got involved and we're not supposed to talk about it or name any names.
If anybody was good enough to be "faking" this sort of thing now - they'd be an artist in their own right and have no need to fake anything.
