A dramatic pattern---maybe about 1900
If you were going to explain the pattern you might show it as a four patch.
A Shoo Fly block alternating with a striped block.
Single Wedding Ring alternating with a stripe.
It's a good idea but alas I don't have a BlockBase name or number for it
I would guess it might best be described as an alternate block set.
Sort of like a Snowball or an Irish Chain.
Stripes based on a division of three.
Here's a 9-patch star alternating.
On Point: Looks more complicated than it is.
And speaking of diagonals.