The specified coin, while referencing Susan B. Anthony and possessing the denomination of a dollar, and typically composed of a silver-colored metal, does not exist with a mintage year of 1921. The Susan B. Anthony dollar was minted from 1979-1981 and again in 1999. Understanding the correct dates of issue is crucial for identifying and valuing United States coinage.
Accurate identification of coins is important for collectors, historians, and numismatists. Misinformation regarding mintage dates can lead to incorrect valuations and a misunderstanding of the historical context in which specific coins were produced. Proper research and reliance on authoritative resources are essential for accurate knowledge in this field.