DALLAS (AP) – Keys to the New Jersey lab where Thomas Edison invented
the phonograph and some of the light bulbs that he perfected sold for more
than $60,000 at auction on Saturday.
The keys sold for $10,625 at an auction run by Heritage Auctions in Dallas. A
set of five Edison bulbs used in a court case sold for $30,000.
The items were acquired by Charlie Knudsen, 69, of Pittsburgh, and had
belonged to his great-aunt. She was married to one of the attorneys whose
law firm represented Edison in patent lawsuits.