Well I learned something from MMD.  I started calling it 'SO' and
was roundly trounced by AMICA folk and have been calling it 'KO'
now for years.  I guess I am now back in the 'SO' school.

However, Matthew, a Reproduco is not a reproducing piano at all but
an 88-note player with pipe organ additions.  They range from
a funeral/theater/church unit with one rank of Quintaton pipes to
a full pit organ/photoplayer with the box on the side full of effects
and organ pipes, xylophone, etc.  These have a second organ manual and
many have two roll frames.  Large ones have organ klavier (pedalboard).

D.L. Bullock    St. Louis
www.pianoworld.us