Hello Mechanical Music Lovers,  As part of the big San Francisco
Mission District piano roll hoard there was one long and unusual
multi-tune roll.  It is about 15-1/2 inches wide with what appear
to be aluminum or stainless steel flanges.  The leader has the number
'9340' stamped on it and there are no other markings other than tune
numbers.  It is quite fragile.  I have attached a few photos.  Can
anyone identify the roll and what instrument it was made to play on?

Marc Sachnoff - From Seattle, where the rain and cool weather have
chased away the smoke from the many wildfires still burning up our way.

Marc Sachnoff

 [   number '9340' stamped on leader
 [ http://www.mmdigest.com/Attachments/17/09/20/170920_192922_507a.jpg
 

 [   music roll
 [ http://www.mmdigest.com/Attachments/17/09/20/170920_192922_700.jpg
 

 [   wood hub
 [ http://www.mmdigest.com/Attachments/17/09/20/170920_192922_724.jpg
 

 [   driven chuck
 [ http://www.mmdigest.com/Attachments/17/09/20/170920_192922_733.jpg
 

 [   roll with flanges inserted
 [ http://www.mmdigest.com/Attachments/17/09/20/170920_193130_940.jpg