What do these traffic signs indicate?

This sign combination indicates the upcoming start of a no-overtaking zone, which will begin in 200 meters. The round sign with the two cars—one red and one black—means overtaking is prohibited once you reach that point. The additional plaque below with "200 m" tells you the distance from the sign to where the no-overtaking restriction begins.

So, this sign warns you in advance so you can prepare to stop overtaking safely before reaching the no-overtaking zone. This rule helps to improve road safety where overtaking could be dangerous, for example, on narrow or winding roads. Understanding that the restriction starts after the specified distance is key to following the rule correctly.