Vice President of the United States the Twenty-fifth Amendment established a procedure for filling such a vacancy: This procedure has been implemented twice since the amendment came into force. The first instance occurred in 1973 following the October 10 resignation of Spiro Agnew, when Gerald Ford was nominated by President Richard Nixon and confirmed by Congress. The second occurred 10 months later following Ford's August 9, 1974 accession to the presidency upon Nixon's resignation, when Nelson Rockefeller was nominated by President Ford and confirmed by Congress. Had it not been for this new constitutional mechanism, the vice presidency would have remained vacant after Agnew's resignation and
Seal of the Vice President of the United States dies made with counterdies and hand presses in order to affix wax impressions to official documents; one in the Vice President's office and one in the Senate. These were in diameter. The Bureau also made seven smaller stamping dies, ranging in size from to inches (), used to imprint facsimiles on invitations, stationery, and the like. Rockefeller was pleased with the result; he wrote Ford a thank you note which mentioned "as you know, art and aesthetics are my weakness". The seal has not been changed since. Seal of the Vice President of the United States The Seal of the