The stamps were issued since December 3, 1940, the issue date of each stamp follow:Stamp No. Issue date
SD7.1 3.12.1940
SD7.2 11. 5.1942
SD7.3 3.12.1940
SD7.4 21. 4.1941
SD7.5 11. 5.1942
SD7.6 1. 5.1942
SD7.7 3.12.1940
SD7.8 11. 5.1942
SD7.9 3.12.1940
SD7.10 18. 1.1943
SD7.11 18. 1.1943
SD7.12 18. 1.1943
The overprint was arranged by the Postal Supply Deparment in Shanghai with a local printing press and was made in black ink. The characters 〝限新省貼用〞(restricted for use in Sinkiang) of the Regular-Writing style were overprinted in a horizontal line between the national emblem and Dr. Sun's portrait.