World record for the 1903 series

Two "Dogs Playing Poker" paintings cleaned house at Doyle New York's annual Dogs in Art Auction, fetching a staggering $590,400, the auction house said.
It was estimated that the two rare paintings from Cassius Marcellus Coolidge's 1903 series of dogs playing poker would fetch $30,000-$50,000, Doyle said in a statement after Tuesday's sale. The auction house said that, after intense bidding, "A Bold Bluff" and "Waterloo: Two" sold to a private collector from New York City.
The sale set a world auction record for artist Coolidge, who created the works for a St. Paul, Minn., advertising firm, the auction house said.
Coinciding each year with the Westminster Kennel Club dog show, the auction offers two centuries of canine paintings, paintings, prints, bronzes and other objects.