I don't know a lot about this. I believe it takes a roll different from a piano roll; I do not have any. This belonged to my father, he removed it from an organ in working condition, it has been crated up for many years. It needs to move on to someone who has an appreciation for it. Will try to answer any questions. Located in St. Joseph, Missouri. Dwayne Stagg dwaynejs@netzero.net.geentroep [ pipe organ player unit [ https://www.mmdigest.com/Attachments/21/03/22/210322_140203_Image034.jpg [ https://www.mmdigest.com/Attachments/21/03/22/210322_140203_Image030.jpg [ https://www.mmdigest.com/Attachments/21/03/22/210322_140203_IMG_0580.jpg [ https://www.mmdigest.com/Attachments/21/03/22/210322_140203_IMG_0583.jpg