The front is Yilong, and the back is 12 commemorative coin made by Shanghai Stamp Company.
There is no face value on the "commemorative coin" you mentioned, right? This is not a coin, but a stamp. Only the People's Bank of China has the right to issue. When you say "twelve o'clock", you mean the design of the zodiac, right? It's the pattern of the zodiac from mouse to pig. The dragon is on the front, which means it is the commemorative medallion of the Year of the Loong, a Chinese zodiac animal. The price of commemorative medals is very low, and it will be higher if it is sold for two or three yuan.