April 1944 Henry Morgenthau and Harry Dexter White of the U.S. Treasury Department authorized the air transfer of these to the USSR. Using a printing plant in occupied Leipzig, the Soviet authorities printed large runs of occupation marks to fill Soviet coffers with dollars causing inflation and financial instability. An investigation by the United States Congress (Occupation Currency Transactions Hearings before the Committee on Appropriations, Armed Services and Banking and Currency, U.S. Senate, 1947) found that about $380,000,000 "more currency than there were appropriations for" had been circulated. In 1947 Rhineland-Palatinate issued 5₰ and 10₰ notes with Geldschein on them. Occupation Reichsmark Coins and banknotes for circulation in the occupied territories during the war were issued by the Reichskreditkassen. Holed, zinc coins in 5 ℛ₰ and 10 ℛ₰ denominations were struck in 1940 and 1941. Banknotes were issued between 1939 and 1945 in denominations of 50 ℛ₰, , , , , and . These served as legal tender alongside the currency of the occupied countries. The coins were originally planned in great numbers of 100 million and 250 million each of the 5 ℛ₰ and 10 ℛ₰ coins respectively. The first embossing order, which was issued in April 1940, was about 40 million × 5 ℛ₰ and 100 million × 10 ℛ₰. The total amount was divided between each of the seven German mints after the embossing key of 1939. The contract was stopped in August 1940 as the Wehrmacht, which had requested the coins for Belgium and France, had no more need of it. When the embossing stopped, only Berlin ("A") and Munich ("D") produced significant quantities, but they still came to only a small extent of original production plans. The majority were melted down due to the limited supply of metal and thus, most mint marks are now quite rare (except for 1940 5 A and D, and 1940 10 A). Concentration camp and POW Reichsmark currency Various special issues of Reichsmark currency were issued for use in concentration and prisoner of war (POW) camps. None were legal tender in Germany itself. From 1942 to 1943 tokens were struck for use within the Łódź Ghetto. Military Reichsmark currency Special issues of Reichsmark currency were issued for use by the Wehrmacht from 1942 to 1944. The first issue was denominated in 1 ℛ₰, 5 ℛ₰, 10 ℛ₰, and 50 ℛ₰ and , but was valued at 1 military Reichspfennig