383a CSS 470 1939 (Dec.) and later, Dah Tung Dr. SYS Line perf. 14, 8c olive green without "dah" in button. complete 4x5 transfer block of 20 stamps

383a CSS 470 1939 (Dec.) and later, Dah Tung Dr. SYS Line perf. 14, 8c olive green without "dah" in button. complete 4x5 transfer block of 20 stamps