CITIBANK SELLS MARK/AUSTRALIAN DLR WARRANTS Citicorp said that on behalf of its Citibank N.A. Subsidiary, it is issuing 100,000 naked currency warrants priced at 67-1/2 marks each to purchase Australian dlrs for marks at a rate of 1.1825 marks per Australian dlr. The current rate is 1.2850 marks per Australian dlr. Each warrant is for a nominal amount of 1,000 marks and the minimum purchase will be for 100 warrants. The warrants expire on January 8, 1988. Payment is due on April 8 and the warrants will be listed on the Luxembourg Stock Exchange.