This would be an easy quilt to make without a pattern. Break it down into rows. Look at the rows diagonally. One row is a square, flying geese, square, square, rectangle, square, flying geese.... The other row is flying geese, square, flying geese, rectangle, square, rectangle, flying geese.... By looking at it it appears the rectangles are twice the length of the squares. The border squares set on point take care of the edges. Beautiful quilt.
I rarely use a pattern for a quilt as I enjoy dissecting the whole into manageable elements.