CW,
This braided borders are made with only one strand. There are some variations on how to do it. I self learn this so I didn't know any name for it. Later I found that in my country everybody know them as the Sewing from 1 to 7. The way to do it is easy. You go from hole number 1 to the hole number 7 over the border. Then you come back over the border again but this time you enter on hole number 2. From hole nunber 2 you have to go to the number 8, then from 8 to 3, then from 3 to 9, etc. As you go forward, you have to braid with the strands you find. The patern will be: when you go forward you pass over one, under 2 over 2 and then over the border to enter in the next free hole. Coming back you go: Over the edge and then over two, under two and over one.
There is an easier one called from 1 to 5.
I wrote a book about it as it was mentioned by one of the members. It is called "Braided Borders"
Let me know if my explanation was not clear.
Cheers,
Enrique
Thanks everybody for the warm welcome.
Enrique