Song dynasty. Ssangyong's second-class medal was cast with a circle made by the Ministry of Agriculture, Industry and Commerce. The word "medal" is read directly from top to bottom in the circle, and the word "Ministry of Agriculture, Industry and Commerce" is cast on the right outside the circle, which corresponds to Manchu, which is Song style. The Ministry of Agriculture, Industry and Commerce officially signed by the Qing Dynasty was formed by the merger of the Ministry of Commerce and the Ministry of Industry in the thirty-second year of Guangxu (1906). It is one of the newly established central institutions in the late Qing Dynasty, in charge of agriculture, industry and commerce, forestry, aquatic products, river defense, water conservancy, trademarks and patents. Shangshu alone, assistant minister, left and right, left and right.