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Duo-Art Test Rolls
By Bob Stewart 

Could someone give me a breakdown of the Duo-Art Test Rolls that
were produced?  I have a 1921 Electric Duo-Art Tester and Duo-Art
Test Roll No. 3.  Were there more?  Which rolls covered what years
of piano production?

Bob Stewart

(Message sent Tue, 2 Mar 2004 18:32:09 -0600 , from time zone -0600.)

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