DeBence Antique Music World museum is now in possession of the 50-note Maestro mentioned several times in the past on MMD that belonged to James Williams. Unfortunately it is missing some critical components which we can probably reproduce if we had any idea what they were. Based on what we have been able to find we think the roll drive was done by hand crank, and while we have the final parts near the tracker bar, the lower drive parts are missing. The stack repair is easy, so is the pump repair. We need some information about the roll drive parts. Photos from the operators side would be very helpful. The first page of the instruction manual is on-line which implies the rest may exist. Of course we need some rolls to play on it if we get it working. Some photos are attached. We just need some help here! Scotty Greene - DeBence Antique Music World Franklin, Pennsylvania [ http://www.mmdigest.com/Attachments/17/09/27/170927_061306_Maestro%20operator%20side.JPG [ http://www.mmdigest.com/Attachments/17/09/27/170927_061306_Maestro%20piano%20side.JPG [ http://www.mmdigest.com/Attachments/17/09/27/170927_061306_Maestro%20roll%20mount.JPG [ MMD articles about the Maestro Keytop Organ Player are at [ http://www.mmdigest.com/archives/KWIC/M/maestro.html [ and http://www.mmdigest.com/Gallery/Tech/Doman/index.html [ -- Robbie