Hi:  You are probably right about Unafon as opposed to Unifon.  This
was 25+ years ago when I did the rebuilding on the Unafon, and ones
memory tends to get a bit dull over that time period.  I always figured
that I could build one from scratch with a metal bar xylophone and a
lot of door bells!  Perhaps some day.

By the way, I have a MIDI arrangement which includes a simulation of a
Unafon, if that interests anyone.  Adding the notation for all those
64th notes was tedious!  One of the last machines I worked on was an
Arthur Burson Band Organ.  It was quite a machine!  My apologies if I
spelled Mr. Burson's name wrong.

Best to all.
Jim Cook