Masons Marks
To identify their work masons often carved special marks into the bottom, sides, or back of the stones. Their supervisors were thus able to distinguish between the quality and quantity of each mason's work. Blocks for the building were quarried from local sandstone from the banks of the nearby Black Warrior River.
Over a dozen different masons marks and directional signs appear throughout the ruins. Such identifying marks had been used by stone masons since the European Middle Ages.
Marker can be reached from the intersection of 6th Street and 28th Avenue.
Courtesy hmdb.org
