One book that comes to mind is Antonio Fraser's book, The History
    of Toys.  This is an excellent and well-known book.
    Also, the Folk Art Museum in Santa Fe has one of the most
    fantastic collections of toy theaters I have ever seen with over
    100 on display.  I would contact them for more
    information.   The Museum of International Folk Art  (505)
    827-6350.

    Your project sounds great.  Good luck.

    John Handley