Update: The newspaper sold for $50,000 to a buyer who was not identified by the auction house.
A copy of Benjamin Franklin's Pennsylvania Gazette containing the original version of the well-known "Join or Die" political cartoon will be auctioned this week in Los Angeles.
Bidding for the May 9, 1754, issue of the Gazette will begin at $40,000, Nate D. Sanders Auctions said in a statement.
The cartoon, attributed to Franklin, appears on the last page of the four-page newspaper, published in Philadelphia.
The auction house says the copy up for auction Thursday is the only one known to exist outside of one held by the Library of Congress.