The 50th National Day of the Republic of China was on October 10, 1961. To celebrate the golden jubilee, a set of commemorative postage stamps was issued in two denominations. The 0.80 stamp, in vertical type, has the portraits of Dr. Sun Yat-sen and President Chiang Kai`shek as the central subject, thus paying tribute to the founder and the leader of the Republic of China in these 50 years. The central design for 5.00 stamp, in horizontal type, is a flying national flag and a map of the Republic of China with the mainland behind the flag and the island of Taiwan glowing brightly. On the same day, the souvenir sheet (135 × 100 mm.) consisting of 0.80 and 5.00 stamps was issued.