Final answer:
The question discusses a 1992 commemorative postage stamp of Parker's 99th birthday. Stamps have been used by the USPS to celebrate important individuals, events, and innovations, such as the thermochromic ink stamp for the August 2017 eclipse and the bicentennial of American independence.
Step-by-step explanation:
The question is referencing a commemorative postage stamp issued by the United States Postal Service. Throughout different periods, the USPS has celebrated various themes and individuals who have contributed to society, science, and culture by issuing stamps.
For instance, on August 22, 1992, the USPS honored the 99th anniversary of Parker's birth with a Literary Arts series stamp. In the realm of innovation, the USPS also introduced a stamp for the August 2017 eclipse featuring thermochromic ink, which changes with heat.
Notably, stamps have also been used to acknowledge historical events, such as the Expo '74 designed by Peter Max, the revolutionary service of Salem Poor, the legacy of anthropologist Margaret Mead, and significant moments such as the bicentennial of American Independence.