Custer's Last Flag For Sale

Estimates are that it will sell for between $2-$5 million

A flag that accompanied Lt. Col. George Armstrong Custer and his 7th Cavalry into their final battle 134 years ago will be put up for auction by the auction house Sotheby's on Friday.

The flag was found beneath the body of a 7th Cavalry soldier killed in the 1876 Battle of Little Bighorn.