It's taken a while to get it but here's Fritillaria hermonis. From memory there was a much commoner plant, F. hermonis amana which was widespread in nature and cultivation but the type plant was much more restricted which is the reverse of the usual. The "amana" plant is now I think F.amana so sanity is restored. For now.
I've tried to get this a number of times since it became more common in cultivation but I lost one before flowering and seed hasn't done much. So this is my first flowering.
Looking at the pics it seems to be true but probably more importantly I like it and it's a bit different from the other Frits I have.