dose anyone have a pattern for or the dimensions of the wwii german bread bag?

I was wondering if anyone had a copy of a pattern for or the dimensions of the german bread bag that was used during wwii. I would like to make one rather than buy one and need the measerments. or if anyone has a good close up pictuer of one with a ruler by it for scale that would do too. Or maybe if anyone has a post war one I could buy that would be great too.

William P.