What block is this?

I've just been reading Barbara Brackman's blog in which she is talking about blocks without a name.  This brought to mind this Welsh quilt with a most complicated block.  Isn't it a stunner?

Sorry that the picture isn't better,  it was taken before I had a digital camera, but I think it gives you a flavour?  I wanted to include it in MAKING WELSH QUILTS but we couldn't track it down in time for the photo shoot. It was made in Mid Wales in the Llanidoes area and was shown at an Quilt Association Summer Exhibition a few years ago.  It has stayed in my mind and I am sure you can understand why?  But what a block and all made in Welsh wool!