382 CSS 468 1939 (Dec.) and later, Dah Tung Dr. SYS Line perf. 14, 5c. Olive green. complete 4x5 transfer block of 20 stamps

382 CSS 468 1939 (Dec.) and later, Dah Tung Dr. SYS Line perf. 14, 5c. Olive green. complete 4x5 transfer block of 20 stamps