A bust dedicated to King Casimir III the Great, who reigned Poland from 1333-1370 and contributed greatly to the salt mine, dedicated on the 600 year anniversary of the creation of the statutes of the Krakow Salt Works.
When I was in Poland, I joked that fantasy Dwarfs must be Polish because the carvings and busts, like this, look just like the art that adorns the walls of Dwarf mines, even down to how the beards are carved.