Harvey Fletcher autographed Note or Letter
(1884-1981) American Physicist. He was the inventor of the hearing aid and the audiometer and is noted as the father of the stereophonic sound. This item is a typed signed letter, dated 1972. It has the usual mailing folds.
Note or Letter
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Historical Information
This item is no longer available. It was sold on 1/27/2008 8:39:00 PM for $40.25.
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Signing Information
This autograph was obtained on 11/27/2007.
NOTE: The date this item was obtained is not necessarily the date it was signed. This is the date it was entered into our inventory system.
This Harvey Fletcher item is guaranteed by Autograph World to be authentic for life. It is also guaranteed to pass third party autograph authentication.
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