In 2011, an Adelaide woman contacted biological anthropologist Maciej Henneberg about an identification card of an H. C. Reynolds that she had found in her father's possessions. The card, a document issued in the United States to foreign seamen during World War I, was given to Henneberg in October 2011 for comparison of the ID photograph to that of the Somerton man. While Henneberg found anatomical similarities in features such as the nose, lips and eyes, he believed they were not as reliable as the close similarity of the ear. The ear shapes shared by both men were a "very good" match, although Henneberg also found what he called a "unique identifier;" a mole on the cheek that was the same shape and in the same position in both photographs. "Together with the similarity of the ear characteristics, this mole, in a forensic case, would allow me to make a rare statement positively identifying the Somerton man."