jared: for pbs news weekend, i'm jared bowen in brookline, massachusetts. ♪ john: finally tonight, ifou're in the market for some rare presidential memorabilia, and you've got deep pockets, have we got an auction for you. this is one of the rarest american flags in existence. >> april 14, 1865. john: and it's about to go on the auction block. >> certainly among the marquee optionis this really quite significant flag that draped the coffin of president lincoln following his tragic assassination, as the coffin was loaded onto a train in washington and then embarked on a historic run from washington to philadelphia to new york city, on to other stops as it made its way to springfield, illinois, where the president was buried. john: april 14, 1865. the civil war had ended just days before. a war-weary abraham lincoln went to ford's theater in washington to see a popular comedy of the day, "our american cousin." as the audience reacted to one of the play's biggest laugh lines, aor john wilkes booth entered the presidential box and shot lincoln in the head. items related to lincoln's assass