Polish złoty
The building design was approved sometime in 1935. Construction of this impressive building began in the summer of 1936 with an official ceremony for the placing of the cornerstone. Biały Słoń was a very expensive structure with total costs exceeding one million Polish złoty, a huge burden for the state budget of the time. The design was based on the Przemyśl Castle and shaped like a letter "L" with a tower.