The image is a photograph of a blue sign with white text and images. The sign is located in a garden with green plants and shrubs. In the background, there are several military vehicles parked on the ground. The text on the sign reads "M1 90mm" in both English and Korean. Below the text, there is an image of a mountain landscape with a blue sky and white clouds. On the right side of the sign, there appears to be a photo of a helicopter flying over a body of water.