White text: Photographed on February 4th in a maintinence shed at Fort Howard state park, originally an artillery at the fort that defended the mouth of the Patapsco River.
Black text: Installed at the water treatment facility on April 20th.
White text: Photographed on February 4th in a maintinence shed at Fort Howard state park, originally an artillery at the fort that defended the mouth of the Patapsco River.
Black text: Installed at the water treatment facility on April 20th.