What had been put up on the bulletin board?

In the story "The Hack Driver" by Sinclair Lewis, the new arrival had put up a sign on the bulletin board at the station. The sign informed visitors that Oliver Lutkins wanted by the narrator's office was in New Mullion.

This notice caught the narrator's attention and led him to travel to the village in search of Lutkins. The bulletin board notice plays an important role in setting the story's events in motion.