This is Hi Babit's take on the green J. Lawrence Cook piano
offered on e-Bay:

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=330320920074 

  I see that the bidding at eBay has stopped for that green piano.
  This is not the piano I used with Cook.  I never saw this one.

  The piano I used with Cook was in the 57th Street building of
  Aeolian.  I will look for the picture of Cook's piano in the
  New York room.

  I see the tubing, but where does it go?  I don't know where the
  tubing was connected, to make a roll.  I would think that the
  tubing is a bit dried out to work with.

  Cook used to fix his piano with rubber bands and glue and paper
  clips.  He knew his machine, so he was able to make simple
  corrections.

Vincent Morgan, New York City

 [ I believe the hoses were connected to a "stepping perforator"
 [ very much like the one displayed at QRS in Buffalo, New York,
 [ and the piano and its companion perforator were in Cook's home.
 [ See http://www.mmdigest.com/Gallery/Pictures/JLCperf.html 
 [ -- Robbie