1912年中華民國成立之後繼續使用郵政式拼音，因此它係20世紀上半葉西方國家拼寫中國地名時最常用嘅系統。
After the founding of the Republic of China in 1912, the postal pinyin continued to be used, so it was the most commonly used system for spelling Chinese place names in Western countries in the first half of the 20th century.