Kings and rulers

Princess Margaret, Countess of Snowdon and younger sister of Queen Elizabeth II, (center, with sunglasses) with Lee A. DuBridge, President of the California Institute of Technology, (right) during a visit to the Caltech. All others are unidentified.

Princess Margaret, Countess of Snowdon and younger sister of Queen Elizabeth II, (foreground, left) with Lee A. DuBridge, President of the California Institute of Technology, (foreground, right) during a visit to the Caltech. All others are unidentified.

President Harry S. Truman (left) at his desk in the Oval Office with Crown Prince Olav of Norway (right).

President Harry S. Truman (left) at his desk in the Oval Office with Crown Prince Olav of Norway (right).

President Harry S. Truman (left) at his desk in the Oval Office with Crown Prince Olav of Norway (right). Also present is Wilhelm Morgenstierne, the Ambassador of Norway (center).

The Shah of Iran (at the front of the group, right) paying respects at the Tomb of the Unknown Soldier. All others are unidentified.

President Harry S. Truman (left) with the Shah of Iran (right) in the Oval Office.

The Shah of Iran (fifth from right) with unidentified officials at George Washington's home, Mount Vernon, Virginia.

President Harry S. Truman (left) and the Shah of Iran (right) in the Oval Office during the Shah's visit to the United States.

President Harry S. Truman (right) and the Shah of Iran (left) giving a speech at Washington National Airport after the Shah's arrival in the United States. President Truman's plane, the Independence, is in the background.