"The League of Nations equipped emigres who had lost their Russian citizenship with a so-called Nansen passport, a very inferior document of a sickly green hue"

Nansen Passports were the first refugee travel documents. Named after Norwegian scientist and polar explorer Fridtjof Nansen who designed them in 1922, they were issued by the League of Nations to stateless refugees in the early twentieth century, in this case Russian émigrés. Approximately 450,000 Nansen passports were issued.