The coin in question is a 1958 Franklin Half Dollar, minted at the Denver Mint, distinguished by its "D" mint mark. As part of the Franklin Half Dollar series, this coin features a classic design that pays tribute to Benjamin Franklin, a founding father of the United States. The coin has a denomination of 50 cents and is made primarily of silver, weighing in at 12.5 grams with a diameter of 30.6 millimeters. It is categorized under the type "Coins" and was produced through a mint strike. With a mintage of 23,962,412 pieces, the 1958 Franklin Half Dollar is a notable entry in the series, representing not just a currency but an important piece of American history. Whether for collectors or as a representation of mid-20th-century American coinage, this coin holds its place as a significant item in numismatics.