The Handprint
The handprint Campbell left is still there today, although the wall has been washed, painted over, and, according to some versions, even knocked down and replaced. A forensic scientist who examined the handprint with infrared photography in the 1990s concluded that it had never been painted over, and stated that the history of Campbell's execution suggests a right hand print on the wall, rather than the left hand print that is currently visible. The prison is listed on the National Register of Historic Places for its example of 19th-century prison construction as well as its role in then labor conflicts.
Read more about this topic: Alexander Campbell (businessman)