If you are referring the instrument of rotating glass disks that are
played with fingers wetted with water and vinegar, it was called the
Glass Harmonica on one record I bought.  However, I came across a piece
of music that referred to it by still another name -- one that I should
be able to recall, but can't.  I'll work on it.

Yes, you are well advised not to translate it as "Benjamin Franklin's
Organ!"

Bill Chapman