Wrong address

Exploration Stage: Historical Museum
From: Mr. Black
Description: Ms. Hartley found that troubling device in a house that had come from somewhere carried by fog. She also picked up a nameplate with the address on it. If she could find the nameplate, she would be able to identify the owner of the chronometer.
Completed: I don't see any number or street name on it. Did it get lost in the fog? Ms. Hartley said it was valuable... a sample of what fog can do to commodities. Damn scientists.