Marty Roenigk is too modest. In the Autumn 1975 edition of the MBSI
Technical Bulletin is an article entitled "The Wolverine Zilotone."
This is the only article published by the MBSI about this unique piece.
It was patented October 7, 1930.

Marty wrote an exceptional article with documented historical
accuracy about one of the more enjoyable mechanically musical toys.
Kudos to him.

Angelo Rulli
St. Paul, MN