Primula allionii 'Mrs Dyas'

Phil puzzled by that one we used to show Mrs Dyas from the early 90s on and the petals had two or three distinct ridges running the length of each petal,from a little distance back looked like white lines.
Have Googled it and the pictures available all look the same as yours.Still puzzled.
I do still have it but the flower are over.

I bought this at the Essex A.G.S. annual show a couple of years ago,so I took the label as correct.
It's an interesting time now,as a lot of the seed sown over winter are starting to germinate,including some Hepaticas that could be very nice.I've just got to remember to keep the snails at bay.