Up for sale this extremely rare 1/2 ounce Proof gold bar (discontinued) # 00447 BP. 999 Pure Gold bar. The Hungarian National Bank is authorized to issue pure gold bullion bars, their distribution is carried out by Magyar Penzvero Zrt. Authorized by the MNB. Since this gold bars are discontinued. This gold bar is 26.5 mm X 39.6 mm. This extremely rare gold bar is a fantastic addition to any bullion collection or historic collection. Photos are of the actual gold bar you will receive.