 The Supreme Court overruled "Hepburn v. Griswold" in the "Legal Tender Cases", holding that United States Notes could be used to re-pay pre-existing debts.The "Legal Tender Cases" primarily involved the constitutionality of the Legal Tender Act of 1862, , enacted during the American Civil War.The Act authorized issuance of paper money, United States Notes, to finance the war without raising taxes.