Hi All,  Pratt-Read had three basic player systems.  The Model "M"
Foot Expression Action, the Model "P" Upright Reproducing Action, and
the Model "PC" Combination Reproducing Action.  The Reproducing Action
is a Recordo type mechanism.  Therefore, I would classify it as an
expression system rather than a reproducing system.  However, I suppose
that at the time, any player that automatically added various levels
of expression might have been referred to as reproducing actions for
the sake of advertising a product that was in competition with Duo-Art,
Ampico, Welte, Recordo, and others.  Just my guess...

From the posting that Wolfgang sent, it seems possible that he might
have the fairly rare Model "P" Upright Reproducing Action.  I carry
the twelve-page 1920's blueprint and manual for that action at

  https://www.buysecure.com/playercare/reprints.html#pr-repro

I also recommend the Pratt-Read Style 72 Player manual, which covers
other aspects of the player mechanism.  It's listed just below the
Model "P" manual.

"Keep the Music Rolling"

Musically,
John A Tuttle
Player-Care.com
Brick, New Jersey, USA