Photo 1 by Earl Leatherberry (Sept. 14, 2008).
Photos 2 & 3 by unknown (Sept. 6, 2008).
Photo 4 by Dr. Ken Jones (2011).
Photos 5 & 6 by Bruce Wicks (Sept. 11, 2012).
Photo 7 Google Earth street view (Oct. 2012).
Photo 8 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 west. HGC 23-72-01 is on the east side of the building. Two-story brick building. Brown. Greatly faded.