INDIANAPOLIS — An Indiana soldier’s rare leather-bound first edition copy of volume one of “The Federalist” has sold for $80,000 at an auction.

Indiana National Guard Capt. Nathan Harlan was in high school when he paid $7 for the 1788 book that’s the first part of a two-volume book of essays calling for the ratification of the U.S. Constitution.

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Harlan will get all the proceeds because Heritage Auction Galleries is waiving its standard 20 percent commission in recognition of his upcoming second deployment to Iraq.

The Dallas auction house says the winning bidder is from the Baltimore, Md., area.

Before the auction, Heritage Auction Galleries conservatively estimated the book would bring between $8,000 and 12,000, but it says publicity about the auction attracted multiple bidders.