Birthday Card for K.

I was trying to come up with a birthday card without any historical significance. Patterns are fascinating, not the least for being much simpler taken apart than put together. I put this together by making a series of squares of three different sizes. Making them line up gave me a moments pause. When I took it apart I realised that the whole thing was just a single zig-zag mirror imaged on itself.

There are multiple colour versions, but this one today as it is a birthday card.