Bills in the era of the 1960s and 1970s seem to feature Chinese workers and the reconstruction of China. This one features on the front, happy Chinese workers that represent the "Four Modernizations." The "Four Modernization includes, Industry, Agriculture, Military, and Science. On the back you see a picture of Tiananmen Square.
This bill measures 6 1/8 by 2 7/8 inches. -- By comparison the US Dollar bill measures 6 1/4 by 2 1/2 inches