Detail of a mid-20th-century quilt
Looks like a southeastern Pennsylvania quilt about 1900.
Tans were probably once greens.
Found in Ohio, About 1890-1910
Julie Silber Quilts
Wish I had more examples for this second post in a series of Just Squares.
But then you get the picture.
Karen Griska has a pattern, looking at it as a block. Here's her mock up.
If you put a sashing strip of a single row between the blocks it would look like the vintage examples.