In the 1500 block of Pleasant, there's this building. Not much to talk about, until you notice this:
We thought for certain they were signs for a fire company, as we've seen on other firehouses. But, maybe not. Look again at the building. It doesn't look quite right for a fire station. And a visit to the Cincinnati Fire Department's History Page doesn't mention anything about a station on Pleasant.
So, your guess is as good as ours. As usual.