I just discovered that the web site information given in the
MMD Archives for Siegfried and Jörg (Joerg) Wendel's birdbox and
whistler business has changed.  Their new web site is, as far as
I could determine, at http://www.musicboxworld.de/Anfang-1e.htm and
they are now doing business as Mechanical Musicboxes Manufactory (MMM).

The web page gives a nice history of their business and its Griesbaum
antecedents.  But I can't find any contact information or links to
other pages on the web site.  Perhaps someone can correct my
understanding, if it is wrong.

Matthew Caulfield
Irondequoit, New York