
The image is a photograph of a blackboard with Chinese characters written on it. The text on the blackboard reads "Foundation Group B-13" and is written in both English and Chinese characters. Below the text, there is a list of the names of the founding members of the Foundation Group B13, which was excavated in 1937. 

The list includes:

- 1937-47.5.5
- B13 is 47.5 m long east-west and 9 m wide north-south, with an area of 427 square meters. A total of 42 stone plinths were found on this foundation, they were arranged neatly and uniquely in five rows from south to north with an average spacing of 2-3 m in each row.

There is also a small plaque on the right side of the image that reads "1937-47, 5.5" in Chinese. The plaque is located on a concrete platform with a railing in the background.
