Earth Monster (Tlaltecuhtli) , by aztec art , 1521 , sculpture, mythological painting , Post-classic (c.900-1580) style , Stone carving, Relief
A stone carving on a white surface. 
A rectangular stone block is standing upright on a flat surface.  The block is dark grey in color and has carvings carved into it.  There are two screws on either side of the block.  In the center is an abstract design carved into the stone.