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It looks like some form a 9 patch variation to me. Like a mirror 9 patch.
Check out Quilterscache.com. She has every block that there ever was on her site. Could be there.
It loks like a variant on a Sawtooth pattern. I've seen it before - will take a look through reference books tomght.
I agree with this Nine-Patch Straight Furrow blockOriginally Posted by ghostrider