Summary: Rare documents with 12 signatures of Dr. Martin Luther King Jr. sold on Wednesday for more than $130,000. They were penned in an Alabama jail logbook after King was arrested in April 1963 for leading a march against racial segregation. Rikki Klaus reports on the unprecedented item. It's part of our arts and culture series, "CANVAS." PBS NewsHour is supported by - https://www.pbs.org/newshour/about/funders
