This image shows the black-and-white photograph of a passport by the League of Nations (left) and the black-and-white photograph of Fridtjof Nansen (right), the League of Nations's Office of the High Commissioner for Refugees. He introduced the "Nansen passport" for stateless persons, a certificate that used to be recognized by more than 50 countries. The first so-called "Nansen passports" were issued following an international agreement reached at the Intergovernmental Conference on Identity Certificates for Russian Refugees by Nansen in 1922.
League passport for Russian refugees (left), Fridtjof Nansen (right), black-and-white photograph, ca. 1924–1930, photographer unknown; source: Library of Congress Prints and Photographs Division, LC-USZ62-121987, http://hdl.loc.gov/loc.pnp/cph.3c21987, public domain.