Atlanta ? A collection of Martin Luther King Jr.’s handwritten documents and books won’t be sold at auction and instead will be given to his alma mater, officials said Friday.

A coalition of business, individuals and philanthropic leaders led by Atlanta Mayor Shirley Franklin bought the collection for an undisclosed amount, said Morehouse College President Walter Massey.

The personal papers and books of the civil rights leader were expected to sell for $15 million to $30 million June 30 at Sotheby’s auction house in New York. Massey said the Atlanta group offered more than that.

Massey said his historically black college would acquire the collection, which historians had called one of the greatest American archives of the 20th century in private hands.