In the later years of the war against Japan, the fabi was worth less and less.
Tips
history
The Nationalist government brought in 法币 in 1935 to replace silver dollars (银元). Wartime printing set off runaway inflation, and in 1948 it was swapped for the 金圆券 at three million 法币 to one gold yuan.
usage
In economics 法币 is short for 法定货币 "legal tender": money whose value rests on government decree, unlike money backed by gold or silver.