Jason Church:
Closeup of a historic concrete sample that has been soaked in an herbicide
Jason Church:
Before and after historic concrete sample that has been soaked in an herbicide
Jason Church:
Before and after historic concrete sample that has been soaked in an herbicide
Jason Church:
Before and after brick sample that has been soaked in an herbicide
Jason Church:
Before and after brick sample that has been soaked in an herbicide