Here's the twin of mine that is in the International Quilt Study Center Museum in Nebraska. Soooo very similar
A close up of mine
And here is the twin antique block that just came across my instagram feed tonight from mjinmichigan! She found the single block. It is a quarter of the four eagle block above. It is a small world after all!
Likely the maker wanted a block to document/pattern one of the original quilts above.