I finally got to take Sean's advice, and went through the Hermann Historica catalogues ... all of them for the last 7 years that are online.

I've made screenshots of each of the 20 listings for Bauernwehren they had, and posted them here: http://www.myArmoury.com/talk/viewtopic.php?t=21952

My hope in doing this was that we could create an imagebank of historical Bauernwehren, both to add to our knowledge when appreciating modern reproductions like Tod's ... and possibly to help some of us ;) who are now thinking of commissioning one from him.