Photos 1 & 2 by Earl Leatherberry (Sept. 14, 2008).
Photo 3 by Dr. Ken Jones (2011).
Photo 4 by Bruce Wicks (Sept. 11, 2012).
Photo 5 Google Earth street view. (Oct. 2012).
Photo 6 by unknown (Nov. 22, 2012).
Where to find it
MN Rt. 1/MN Rt. 169 (Main St.) between Poplar St. & Adler St., in Tower. The two-story brick building is on the left side of the street headed east. The HGC sign faces east. HGC 23-72-02 is on the west side of the building. Two-story brick building. Brown. Greatly faded.