 51), titled "An Act Governing the Payment of Monetary Obligations Incurred or Contracted Prior to and During the Japanese Invasion of the Philippines and for Other Purposes", was passed by both houses of Congress on the last day of its last session, December 20, 1945.It was signed into law by President Osmeña on January 18, 1946.The law provided for the validation of payments made in Japanese "mickey mouse" money during the period of enemy occupation.