A complex pattern
Look in a corner of the quilt and here is the block:
or Pinwheel in the Kansas City Star in the 1930s.
Easier to see the design with sashing.
A tied comforter from the Michigan Project & the Quilt Index,
by Judith Green
No Y seams if you add seams, just a lot of pieces, though.
Another way to look at it from Moore About Nancy