A signed studio pinup photograph of model Sylvia Mac Neill, distributed by the Walter Thornton Model Agency of New York as 'A Thornton Pin Up.' During World War II, Thornton's agency became widely known for mailing autographed photographs of its models to servicemen who wrote requesting them, making such images a familiar form of morale-boosting ephemera alongside pinups printed in wartime periodicals like Yank and Esquire. Project: 218698