On the subject of QRS, it seems to me that most of the stories can't
be true since they relate to happenings after the company started
business (i.e. the overflowing mail box, and the places of production),
whereas you would expect the company to have a name to start off with.
Thus I would go for Quality Roll Service.

John Farmer
UK

 [ See the articles at http://www.pianola.org/factsheets/apollo.cfm
 [ and http://www.bluesrolls.com/BT_MelvilleClark.html :
 [
 [  "The QRS company started its life as a subsidiary of the Melville
 [   Clark Piano Company.  It is not clear when the QRS name first
 [   appeared on a roll label, but evidence from a court testimony
 [   in 1903 indicates that the meaning of the name 'QRS' was already
 [   unknown at that time!"
 [
 [ -- Robbie