Brick from a cistern found at Florida A&M University

A clay brick that was once part of a cistern found on the campus of Florida A&M University. The brick appears to have been a standard solid style brick previously, but now it has an irregular shape, perhaps cut into its current shape when it was removed from the cistern. The front of the brick is a rich, reddish brown color, with irregular cuts across the surface. The proper right and bottom sides are covered with gray-colored mortar. The top, proper left and back sides of the brick are flat and weathered, with the appearance of retaining their original shape from when the brick was fired. The top side has regular incisions cut into its surface. At the proper-right corner, there is a small segment of an adjoining brick still attached to the mortar. The mortar is 3/8 inch thick on the bottom side and 3/4 inch thick on the right side.