Many years ago when I worked for a former Ampico employee.  About 1957,
he presented me with a mysterious roll.  He said the roll came from
Eastman Kodak in Rochester.  He was an expert on pneumatic systems, and
therefore was summoned to Kodak to repair a machine which typed letters
via a standard size paper roll.  (This was about 1937)

The roll was the same size as a piano roll, and used the same scale.
I had fun placing the roll on a player or reproducing piano, and
playing jokes on others when the dots punched on the roll randomly
played notes.

Bruce Clark