This block of four originates from the 1944 issue commemorating the one-year anniversary of the return of foreign concessions to Chinese control, during the Japanese occupation of Central China. The stamp features a detailed orange map of the Shanghai-Nanking region, symbolizing national restoration and sovereignty. Issued on August 1, 1944, and printed using gravure technology without watermark, this commemorative issue is perforated 12 x 12½. The design incorporates the Kuomintang sun emblem and place names in Chinese, emphasizing national pride during a period of foreign occupation. It is catalogued as Michel JP-CC 98, Scott CN-IM 9N105, Yvert CN-OJ 92, Stanley Gibbons JP-CC 118, and China Stamp Society CN-IM SN138. This MNH corner block with margin and control dot exhibits uniform gum and fine centering, with slight aging on reverse. Estimate "$160 – 200"