The Subway Series may have been a downer for Met Fans, but memorabilia from the games could one day be worth millions.

Check out these bats, balls, and other mementoes from baseball's brightest stars, now on the auction block at Christie's in Midtown. 

While some pieces are worth a lot of dough, others are available for far less.

Organizers say items from baseball's beginnings are up for grabs, as well as collectibles from not too far back.

"It goes from the 1850s on up," said Pop Culture and Memorabilia consultant for the auction house, Simeon Lipman. "And we have baseball used in the civil war, we have trophy baseballs from the 1860s and 70s and then it goes all the way up to Derek Jeter, Albert Pujols, and Barry Bonds so we have wonderful on display here."

The collection is on display at Christie's until Wednesday, with bidding open through Thursday.

To learn more and to bid, visit Christie's web site.