Nipples on a bull

[Paul Chick (Earthlink)]

Subject: Nipples on a bull

Which brings me to my question - does 
anyone know the history of why there is a useless middle pedal on 
inexpensive upright pianos?  Phil Ryan
Miami Beach

By association.  Our high quality grands have 3 pedals, so therefore, so do
our verticals."  The quote is from a now defunct manufacturer.  He never did
tell us if each pedal-grand or vertical-had a specific function useful while
playing the instrument.

Paul C