Thank you so much everyone for all of your help and suggestions.
Rose_P - My friend is a wonderful piecer but never takes liberties with a pattern, unless I'm there to egg her on
And she made this one on her own with a definite pattern.
So if we can't figure it out by the time the quilt show comes, she can always enter it with the name of one of the blocks 50-40 and a note that explains that there is an additional unknown block and that it came from a magazine. Someone who sees it at the show may know.
I'll keep you posted along with a full photo of the quilted quilt.
Thanks again, you are all so helpful.