Donna Halper dlh@donnahalper.com
Mon Jul 25 12:45:16 EDT 2011

On 7/25/2011 10:57 AM, Dale H. Cook wrote:
> According to an online article by Doctor Auntie Donna (from the Hammond Museum of Radio site) it was in March of 1931.
And since that was written, we now know it was a process begun in 
February of 1931 and finally completed in March.

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