he bank's monumental modernistic headquarters was designed by Rudolf Świerczyński. Constructed in 1928–1931, it was recognized as a monument in 1965.he history of BGK dates back to 1924 when the President of the Republic of Poland, at the initiative of then Prime Minister and Treasury Minister Wladyslaw Grabski, issued a decree establishing BGK. It was created by a merger of three public banks from the Galicia region, the Polish National Bank, the State Reconstruction Bank and the Credit Institution of Malopolska Cities.