Pincushion Variation

An interesting pattern from the 1930s.

Not in BlockBase.

I've analyzed the pattern several ways.

You could look at it as a square in a square block with curves. The blocks set in a white sash with a purple cornerstone.

It should be near #2684 New Moon

and #2685 Dolly Madison's Workbox

but it's not. Notice the extra seam in the outside curved piece.

So it might be a new number 2684.5.

Or you could look at it like this, where the purple square

is in the middle of the block.

But that has no number either.

I have another example of this design, also from the mid-20th-century.

Polka dots always a good choice.

How to draw a pattern? Here's an EQ sketch of the corners.

Or maybe like this.

Or both

Print this PDF for a 12" block.

Update: I found the pattern, one of the elusive Alice Brooks designs:

Friendship Chain