Richard Nixon actually said...
The increased rate of duty on imports of pianos provided for in item 924.00 of Subpart A to Part 2 of the Appendix to the TSUS is extended to articles entered, or withdrawn from warehouse, for consumption on and after February 21, 1973, and before the close of February 20, 1974.
Context
Proclamation 4189—Modification of Trade Agreement Concession and Extension of Increased Rate of Duty on Imports of Certain...
02/19/1973