Persian Oil Crisis - U.S. Envoy Appeals to Dr. Mossadeq Dr. Henry Grady (left), U.S. ambassador to Tehran, attends the sick-bed of Dr. Mohammed Mossadeq, Persian Prime Minister, on June 19. Dr. Grady Asked Dr. Mossadeq to give careful consideration to the British Proposal to pay ?10 millions down, and ?3 millions monthly pending agreement, in answer to the Persian demand for 75 per cent of the Anglo-Iranian company's profits since march 20. The Persian government later turned down the British offer, and decreed drastic steps to enforce the take-over. Meanwhile foreign secretary, Herbert Morrison, has given assurance that Britain will not stand idle while British lives are in jeopardy. June 21, 1951. (Photo by Associated Press Photo).