Joe Garrett, If you take the time and the trouble to do a little homework I believe you will find that in the case of S&S pianos all the castings and the duplex scales DO conform to a pattern which is exressed in CFT's patent 126848. It took 15 years of research to allow me to make this assertion. The conclusions of this research is represented in my book The Duplex Scale Field Manual Guide $20.00 If you purchase this tome and don't like it; return it, I will refund your $20.00 Dan Franklin
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