Three covers individually signed by American presidents Jimmy Carter, Gerald Ford, and Richard Nixon: an ‘Inauguration Day’ cover with a cachet honoring 39th President Jimmy Carter, signed in black felt tip, “Jimmy Carter”; an FDC with a cachet honoring the sesquicentennial of Michigan statehood, signed in blue ink, “Gerald R. Ford”; and an FDC with a cachet of Nixon honoring the 100th anniversary of professional baseball, signed in black felt tip, “Richard Nixon.” In overall very fine condition, with a JSA label affixed to the Carter cover, which is accompanied by a certificate of authenticity from JSA.