Actor Charlie Sheen on Monday revealed himself as the owner of Babe Ruth's 1927 World Series ring and the 1919 contract of Ruth's sale from the Red Sox to the Yankees, which are part of the first Lelands.com Invitational Auction. Bidding closes Friday.

"While I have greatly enjoyed owning them, I thought now was the right time to sell the Holy Grail of Ruth memorabilia so others can enjoy them," Sheen said in a statement. "It is my hope that whoever buys these will be able to put them on display for the public."

Ruth's ring, which is for the first of four he won with the Yankees, has the highest price of all the auction's items. It started with an opening bid of $100,000 and was up to $555,991 as of Monday.

That season Ruth had one of the greatest years in baseball history with a .356 batting average, 60 home runs and 156 RBI. He went 6-for-15 in the World Series sweep against the Pittsburgh Pirates, with two home runs and seven RBI.

The five-page contract is the Yankees' copy that Barry Halper once purchased from former owner Jacob Ruppert's estate. It was sold to Sheen in 2005 and hasn't changed hands until now. It also started at $100,000 and is up to $379,749.

There were three copies of the Ruth contract. The Red Sox copy was sold for $996,000 to a Yankees fan during an auction at Sotheby's in 2005. The AL copy has never surfaced.