I am responding to Wayne Stahnke's notes on the Aeolian-Hammond test roll.

When I was retubing my organ's tracker bar, I noticed that the left most
tracker port was used for rewinding, the next two ports were not used.  I
don't know if this was left blank at manufacturing time or a previous owner
removed them.

About your scan test roll - what can I do with the scan image?  I don't have
a preforator to recut a roll.

Eugene Rogers