This 1906 postal cover sent from Korea during the Japanese occupation bears a single 3 sen dull maroon stamp from the Chrysanthemum series issued between 1899 and 1907. Designed by Tomazo Saito and typographically printed without watermark, the stamp features the imperial chrysanthemum crest symbolizing the Japanese monarchy, framed by floral scrollwork and denomination markings. Issued on May 15, 1906, and catalogued as Michel JP 95, Scott JP 98, Yvert JP 113, Stanley Gibbons JP 139, and Sakura JP 108, the stamp appears clearly cancelled with a Korean transit mark, confirming its use within Japan’s colonial postal infrastructure on the Korean peninsula. The envelope is in very fine condition with no major tears or toning, and the stamp is well-centered. This is a representative example of Japan’s integration of Korea into its imperial communications system before full annexation in 1910, offering value to collectors of early 20th-century East Asian postal history. Estimate "$100 – 130"