The coin in question is a 1850 Braided Hair Cent, a notable piece of U.S. numismatic history that reflects the design's evolution during the mid-19th century. Struck from copper and part of a mintage of 4,426,844, this coin embodies the aesthetic popular during its time, featuring the distinctive braided hair design emblematic of Lady Liberty. As a denomination of $20, this coin was minted in a significant era for American currency, yet its denomination seemingly conflicts with the expected cents; hence the description might refer to a broader context or specific collection it belongs to. This piece does not have a mint mark, indicating it was produced at the main Philadelphia mint during an era where precision in minting was increasingly prevalent. As for its physical properties, the specifics regarding width, height, diameter, and weight are not provided, but it was crafted through mint strike production methods typical for the period. As one of the classic designs in American coinage, the 1850 Braided Hair Cent holds a special place for collectors, illustrating not only the artistry of the coin's design but also the historical context of currency in the United States. While the exact values may fluctuate depending on condition, rarity, and market demand, well-preserved specimens of this coin are highly sought after among numismatists, adding to its allure and collectible value.