At no period since the commencement of work at the provincial mints, until the latter half of 1914, had coinage been stopped, of either silver or copper. Even during 1911, the year of the Revolution, the output of the seven mints of Tientsin, Nanking, Wuchang, Chengtu, Yunnanfu, Mukden and Canton amounted approximately to 15,139,677 dollar pieces 4,535,730 half dollar pieces - the minting of these being practically all done in Yunnanfu, 1,092,865 Tibetian coins - the minting of these being done in Chengtu, 42,535,525 20-cent pieces, 393,020 10-cent pieces, 5,147,928 20-cash pieces and 294,797,558 10-cash pieces. Thus even during a year in which there was considerable political unrest the value of the coins turned out of the mints in China was roughly 2,600,000. Even in the succeeding years the volume and value of coinage has more or less depended upon the whims of the provincial officials. What with the depreciation of paper and the lessened difficulty of putting a portion of the output into circulation, coinage continued to be a source of profit to a number of provincial Governments, until the commencement of the European War. A factor which helped to maintain coinage was the complete disappearance of private paper money from circulation during, and after, the revolution. Owing to the financial stringency caused by political situation as well as stagnation of trade due to the uncertain condition of affairs in the country, people preferred even the most depreciated of coins to the best of paper money. During the latter half of 1914, they preferred sycee and bar silver to all coins.