I'm trying to track down information about the Rachmaninoff roll that
features prominently in Larry Givens' book, "Re-enacting the Artist".
It is (I believe) a version of Rachmaninoff's Ampico recording of his
"Prelude in C sharp minor", but has large advertising text printed on
it.  I'm trying to find a year for this version of the roll.  When
might it have been seen in shop windows?

The text on the roll is transcribed in Givens' book as follows (for
your enjoyment).

  "I am the AMPICO.  I re-enact the playing of the world's greatest
  pianists and bring their musical magic into your home.  This
  recording is Rachmaninoff's own interpretation of his famous Prelude
  in C Sharp Minor.  It is the actual playing of Rachmaninoff just as
  if he were personally at the keyboard.  When the Ampico plays, it is
  just as if the hands of the artists were actually touching the keys.
  The same strings are vibrating identically as they vibrated when
  Rachmaninoff himself controlled them.  This is not a copy or an
  imitation or a reproduction, but the actual playing of Rachmaninoff
  himself.  With the Ampico you have a piano plus the genius of
  Rachmaninoff and over two hundred other pianists to play for you in
  your home.  You may hear them whenever you desire if your piano
  contains the AMPICO.  Would you like to have such artists play your
  piano for you at command?  With the AMPICO all your favorite music
  may be heard actually played by such artists.  In many of our finest
  homes the Ampico is producing beautiful music every day for its
  owners.  It is music of which one never tires, for it is endowed with
  human personality.  The AMPICO is obtainable in both grands and
  uprights at moderate prices.  All types of pianos and player pianos
  are taken in exchange for the marvelous AMPICO.  An informal recital
  is now being given in our studios.  Why not come in and hear
  Rachmaninoff and the other giants of the musical world?  The Ampico
  must be heard to be appreciated."

Best,
Nick Seaver