The image shows a signboard on the side of a building that reads "Do not use mobile phone on military area". The signboard is white with black text and a red circle in the center. Inside the circle, there is a black and white image of a mobile phone with a red line through it, indicating that the area should not take any photos on the military area. On the left side of the signboard, there are three red and white signs with the Polish flag on them. The signs are located on a metal fence and there are trees in the background.