Original color 13.75 x 21.75 window card for the Carter Sisters featuring Mother Maybelle at the Armory Building in Glasgow, Kentucky on November 20, 1952, featuring an image of the group—including the future June Carter Cash—along with advertising illustrations for the show's sponsor, Martha White Flour and Coffee. Red text at the bottom bills the country quartet as "Direct from WSM Grand Ole Opry." In very good to fine condition, with intersecting folds.