NASHVILLE, Tenn. A rare 1823 "official" copy of the Declaration of Independence was sold at auction yesterday in North Carolina for $477,650 by the man who found it last year in a Nashville thrift store for $2.48. Michael Sparks, a music equipment technician, sold the document at Raynors' Historical Collectible Auctions in Burlington, N.C. The opening bid was $125,000 and six bidders were in contention. Most of the bidders were absentee by phone or Internet. The winning bidder was not disclosed. Sparks found his bargain last March while browsing at Music City Thrift Shop. When he asked the price on...