 Complete the following phrase:  Because of Marcus Jewish ancestry, his name and all memorabilia, particularly in Austria, vanished under the Nazis. In 1937 the Austrian Harand Movement Against Racial Hatred had issued a series of stamps featuring prominent Jews, including Marcus, who had contributed to mankind in response to the Ewiger Jude eternal Jew exhibition by Julius Streicher in Munich. Marcus was credited as having invented the petrol driven motor car. With the 