the pagination is given as "179, 144" indicating two separately paginated sections and the German word Wendebuch (turning-book) indicates separate sections from the back and the front (there is no English word for it that I know of).  I see there are copies in DC, Munich, and LA.  (There is slightly fuller info. in the full LC & Bayern cats, neither of which can be correctly reached from worldcat. )   The next step would be to write to LC for more information.   ''''''