LONDON GRAIN FREIGHTS wheat Ria Luna 20,000 mt Norrkoping and Djuron/EC Mexico 12.50 dlrs option loading Uddevalla at 50 cents less 4,000/1,500 16-23/3 Continental. Reference New York Grain Freights 2 of March 6, brokers say the charterer of the Saturn from US Gulf to Japan is reported to be Nordstrom and Thulin, while the Antigone is reported to have been arranged from Tilbury to the Black Sea by Soviet charterers.