Medieval Pouch Construction Tecniques

I have been working on making a perfect medieval bag for my 14th century persona.  I ran across this tutorial, which describes how to bind the edges of the bag.  It is wonderfully instructive, and I will be using this method on my own bag.  You can see the demo at:

http://m-silkwork.blogspot.com/2007/04/finishing-seams-of-14th15th-century_29.html