I would like to gain additional knowledge about an electric toy monorail set called the Leland Detroit monorail which I believe was made by a company owned by Henry M. Leland in the early 1930's. Information seems hard to find and I have searched the web as well as the Library of Congress with minimal success. I would especially be interested in knowing how many of these were produced, when and if indeed Henry M. Leland was involved in their design and manufacture. Advertisements for these sets would also be of interest. Thanks.