Abstract Piano rolls are spools of perforated paper (or thin film) programmed with music and designed to be played on a mechanically-operated piano, more commonly called a player piano. Player pianos as popular entertainment reached their heyday in the 1920s, although both player pianos and piano rolls can be found today-- and at least one company, QRS Music, continues to manufacture music rolls. The two music rolls in this small collection were both manufactured by Play-Rite Music Rolls, Inc. in...