In certain frontier and remote Postal Districts such as Sinkiang, Yunnan, Szechwan, Kirin-Heilungkiang, etc., local currencies which differed in value with the national currency were often used. In order to guard against the trading of postage stamps between two places with different money values, the Postal Administration found it advisable to issue stamps which were limited to certain particular areas. Sometime after the founding of the Republic of China, inconvertible bank notes were issued locally in Sinkiang. The notes bore the value of one tael of silver each, but had depreciated to only one fourth of the value. In 1915 they were accepted in the market as actual silver. In 1919 frontier disturbances broke out. As a result of a large issue of notes, the value of the local bank note fell to a rate about one third of the face value, i. e. $100 national dollars ＝$260 Sinkiang. The first lot of stamps surcharged for use in Sinkiang was the Junk Issue of the 1st Peking Print. The stamps were overprinted by the Printing Bureau of the Ministry of Finance, Peking with Regular-Writing characters 〝限新省貼用〞(restricted for use in Sinkiang) in a vertical line about 16 mm.long. The first character〝限〞(restricted) leaned about 1 ㎜. toward the left side. Such stamps are commonly known as 〝新省歪頭〞(Sinkiang Leaning Top Overprint).