Public domain photos

The image shows a green and white sign with the number 4 on it, indicating that it is an emergency exit sign. The sign is rectangular in shape and has a white border around it. The number 4 is written in bold black font and is centered in the middle of the sign.

The image shows a green and white sign with the number 4 on it, indicating that it is an emergency exit sign. The sign is rectangular in shape and has a white border around it. The number 4 is written in bold black font and is centered in the middle of the sign.Open in library