I am working an article for the AMICA Bulletin about the Fan Accordion
Duo-Art. Thus far I have located examples of over fifty of these in
several differing designs. The first five may have been designed as
early as 1925 or 1926.

If you know of any examples of this mechanism, and we have not been in
contact, I'd love to talk with you.

Also, I believe that factory literature (either for sales or maintenance)
must have been produced, but as yet I know of no examples. I would like
to see this literature reproduced and distributed. If you know of any
anywhere (perhaps Frank Adams included it his manual on the Duo-Art),
I'd like to talk with you.

Bruce Grimes