Translation and context:

"Hey Bernd, Fleischküchle are ready."

The picture shows a German police officer from the time before they changed the color of the uniform to blue.

Fleischküchle is the southern German word for a kind of meatballs (lit.: little meat pies) made of seared ground beef with onions, additional ingredients vary depending on region. Fleischküchle or Wurstsemmel (bread rolls with cold cuts) are our equivalent to the donut and coffee cliche.