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.

Thomas Alva Edison  (February 11, 1847 – October 18, 1931)