These 'Reform Period' 1953 notes are quite common and were issued in denominations of 1,2 & 5 Fen; 1,2 & 5 Jiao; 1,2,3 & 5 Yuan.
The 1,2 & 5 Fen have combinations of Roman numerals followed by a serial number or simply Roman numerals.
The aircraft depicted on the 2 Fen note is a Russian Lisunov Li-2 and was a license-built version of the Douglas DC-3.