Interesting, detailed catalogue on the Money Order Stamps of China.

Single franking of the 25Pf Hindenburg Medallion stamp on cover to one Norbert Gruenberg in the Jewish / German expatriate ghetto in Shanghai, China where a large population of Jews had fled from the Holocaust. At this time few countries were accepting the Jewish refugees; the US certainly wasn't. Roosevelt had ordered away a large shipload of refugees in 1939. All returned to Europe, and a majority were eventually exterminated. The 1939 Refugee Bill to allow 20,000 German (Jewish) children into the country was defeated, leaving these children at the mercy of the Nazis. [Defining America Through Immigration Policy, 2004, Bill Ong Hing and Anthony D. Romero]. Rough condition as per scan, with Shanghai circular and rolling handstamp receivers reverse. Sent via Siberia, with multiple Chinese cancels/censors and German censor marks.