The image is a photograph of a large billboard advertising a research clinic called Caseid. The billboard is located on a street corner with trees and power lines in the background. The clinic's name is written in bold letters at the top of the billboard in Thai, which translates to "Research Clinic" in English. Below the name, there is an image of a red cross and the word "Caseid" in smaller letters. 

The billboard also includes information about the clinic, including the clinic's services, contact information, and a phone number. There are also images of medical equipment and a website address at the bottom of the sign. The sign is brightly colored and appears to be in good condition.