LEE DE FOREST HANDWRITTEN LETTER SIGNED, FATHER OF RADIO, INVENTOR, GOOD CONTENT

Description

INVENTOR TALKS ABOUTHIS MOST FAMOUS INVENTION AND ONE OF ITS MOST IMPORTANT APPLICATIONS
LEE DE FORESTHANDWRITTEN LETTER SIGNED,
“Faithfully/Lee de Forest”,on a card 4.5 x 3, 1/12/1916, by the American inventor, self-described “
Father of Radio
”, and developer ofsound-on-film recording used for motion pictures. He handwrites a letter inwhich he talks about his most famous invention, the tree-element “Audion”(Triode) vacuum tube, the first practical amplification device which madepossible radio broadcasting, long-distance telephone lines, and talking motionpictures, among countless other applications. In full: “Dear Mr. Cole/I ampleased to count you among the friends of the ‘Audion’. In long-distancecommunications it renders you service.” This
excellent content handwritten letter is in fine condition
, withminor age toning.
#12476
Certificate of Authenticity
This item has been authenticated and is accompanied by a Certificate of Authenticity issued by our parent company, History Makers Autographs. We financially stand behind our COA. Our commitment to authenticity and customer satisfaction are the reasons why we've been able to stay in business for so long (since 1985)! Ask us about our PSA/DNA and JSA authentication guarantee.
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THIS IS AN ORIGINAL HAND SIGNED AUTOGRAPH
. We do not sell reprints or facsimile autographs. This isour 34
th
year in business. We closed our retail galleries and noware totally internet sales oriented. We are a long-time member of UACC #RD337,PADAH, and the Manuscript Society.
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, withouttime limit, to the original purchaser. Every item we sell comes with a
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