The sign you referred to, guide post on the left, is typically a traffic sign that indicates directional guidance or informs drivers about locations or points of interest.

In Germany, this sign helps in providing information regarding routes or directions, aiding drivers in navigation. The guide post is usually placed in a way that directs attention to the left side of the road. It ensures that drivers are aware of potential destinations, services, or changes in direction as they proceed on their journey.

It's important for drivers to pay attention to these signs to remain oriented and to take the appropriate actions, such as turning or preparing for upcoming road changes.

If you have any specific questions about German traffic rules or need help with other traffic signs, feel free to ask!