Nearly 70 rare pieces of American history worth an estimated $6 million from late Indianapolis Colts owner Jim Irsay’s massive and unique collection are heading to auction next month.“The Jim Irsay Collection: Icons of History” opens on July 1 at Christie’s Auction House, following a free publication exhibition of rare artifacts from American history running from June 25-30.Among the notable items in the latest installment of the collection’s series of auctions is the first official facsimile of the original signed manuscript of the Declaration of Independence (estimated value: $2 million to $3 million) and the working manuscript of “Alcoholics Anonymous,” complete with handwritten notations and edits by authors Bill Wilson and Hank Parkhurst ($1 million to $2 million).Irsay was the owner of the NFL’s Colts for 28 years until he died in 2025. He also owned one of the world’s largest collections of musical instruments, American history artifacts and pop culture items. His collection is perhaps best known for its rare guitars and other items owned and played by some of the greatest musical artists in history, including The Beatles, Kurt Cobain, Bob Dylan, Elton John and John Coltrane.An 1823 stone engraving of the Declaration of Independence from the Jim Irsay Collection. (Photo courtesy of Christie’s)Much of Irsay’s collection sold for a staggering $94,484,903 — three-and-a-half times its low estimate and the largest total of any memorabilia auction in history — over four auctions held between March 3 and 17, three of which were live and one online. The auctions broke 28 world records, including the most expensive guitar ever sold at auction ($14.55 million for David Gilmour’s “Black Strat”).