With the annexation of Austria, the German Reich took over the Austrian mint in Vienna. Vienna got the coin mark B, which had originally stood for Hannover, and started to mint German money.
The Austrian currency was retracted at a rate of 1 reichsmark for 1.5 Shilling. Since copper was needed for military purposes, the coinage of the bronze- and brass-pennies was discontinued in 1939. The pennies were withdrawn from circulation altogether in 1942, and replaced by zinc coins of 1, 5 and 10 pfennig.