Towne Building, 1916
The Towne Building started life as an office and warehouse for the Blake, Moffitt & Towne Paper company. That name is still barely visible, printed vertically, on the southeast corner of the building (see third photo below). The other original signs have been painted over, including most, but not all, of the "... PAPER" sign on the north wall overlooking the Burnside Bridge. The word "PAPER" is still barely visible on the water tank, too.
One remaining original sign, severely faded, is on the west wall, below the top floor windows, that says, "PAPER HEADQUARTERS."
This building is hard to miss on the east end of the Burnside Bridge. Take a walk around the entire building; every wall has a sign of some sort.