pennyswings

Here is the NorthWind Block that Ghostrider found and gave you a sample of.
I agree with her this is the one, but definetely take a look a corn and beans because the way the pattern is shown for NorthWind it is already a 12 inch block and with the two sides put together it would make a 24 " block. So you would have to scale the pattern in half the make a 12" block.
Though this will not work for the pattern you showed, I think the center would look great done in a material with a pattern, like a floral, then put together using a keladioscope square block in the center. Then pick up the colors from the floral pattern using batiks for the triangles. Just some food for thought.
http://www.quilterscache.com/N/NorthWindBlock.html