U.S. publishers and founders of Reader's Digest magazine. Glossy 10 x 8 photo of the Wallaces, signed and inscribed in blue felt tip “Thanks for your compliments, Mrs. Koos. Best wishes, DeWitt Wallace,” and signed underneath in blue ballpoint, “Lila Acheson Wallace” In fine condition, with a few scattered creases and surface marks and some irregular adhesion to Lila’s signature. RRAuction COA.