After the establishment of the national capital in Nanking following the success of the Northern Expedition and the unification of the whole country, a resolution was adopted by the 10th meeting of the National Council authorizing the issue of a series of new stamps bearing the portrait of Dr. Sun Yat-sen and various martyrs. Pursuant to this resolution, the Executive Yuan issued a directive to the Postal Administration to act accordingly.
The design of Dr. Sun Yat-sen stamps bears a portrait of Dr. Sun wearing a 〝Chung Shan〞suit. At the top of the portrait is the 〝Blue Sky and White Sun〞 national emblem. The stamps were printed at London in intaglio by the Thomas de 1a Rue & Co., Ltd. Those of the dollar denominations were all bi-colord.
The first batch of more than a half-billion stamps, which arrived gradually at Shanghai from the middle of August 1931, was intended to be issued on September 1 of that year. When in was discovered that two circles were inadvertently printed around the white sun in the emblem(commonly known as 〝Double〞 Circle Stamps) , the Thomas de 1a Rue & Co., Ltd. was immediately asked by cable to make the necessary corrections. The Company changed the two thin circles into one thick circle in the master die (commonly known as〝Single Circle Stamps〞.(P-24) and from it made the other dies. At the end of October, the first batch of 〝Single Circle〞stamps arrived in China and was immediately distributed to all Post Offices for sale from November 12, 1931, the birthday anniversary of Dr, Sun Yat-sen. The 〝Double Circle Stamps,〞 of which some 500,000,000 pieces were left, were, subsequently placed on sale along with the〝Single Circle Stamps,〞 with the approval of the Minister of Communications.
In addition to the usual sheets, the 2￠ , 5￠ , and 25￠ stamps were bound and sold in booklets.