I agree with you. However, in studying the closeup again, it appears that diamonds were cut and fitted to each corner as a joining piece for the block. Someone probably did not want to take time to cut a traditional Wheel of Fortune block back then. That is my guess.
Curiosity kills me! I just find it intriguing that a quilt like this was found in rare vintage form. It really is a fine quilt! Otherwise, it is a play on the Spider Web design. Lovely use of scraps, for sure. Eddie needs to clarify construction more.
Thanks for your clarification of the 2 blocks, Rachel. Hopefully, Eddie can solve our mystery on this one! Sassysewer