The image is a photograph of a sign posted on a door. The sign is rectangular in shape and has a white background with black text. The text reads "Light switch inside to your right. Please keep this door closed at all times to filter light and control vermin." Below the text, there is an arrow pointing to the right, indicating that the sign is meant to be posted on the door. At the bottom of the sign, the words "Kadina National Trust" are written in black.