The 1958 Liberty Half Dollar represents a specific moment in mid-20th century American numismatics, capturing a design that has remained largely unchanged for decades. This particular year marks the tail end of the Franklin Half Dollar series, which had been in production since 1948. For collectors and investors, this date offers a blend of historical significance and relative accessibility, making it a frequent subject of study and a common find in circulated collections.
Design and Aesthetic Details
Obverse of the 1958 coin features the iconic profile of Benjamin Franklin, rendered by John R. Sinnock. The depiction is highly detailed, showcasing Franklin's spectacles and the intricate lines of his clothing. The inscriptions "LIBERTY" and "IN GOD WE TRUST" frame the portrait, while the date "1958" is clearly visible at the base. The reverse showcases the Liberty Bell, which rests inside a stylized wall of Independence Hall, a design choice that immediately connects the coin to the nation's birthplace of democracy.
Metal Composition and Specifications
Minting these coins required specific materials that reflected the economic realities of the late 1950s. The composition differed based on the minting facility, but the standard copper-nickel planchet was predominant. The weight is fixed at 12.5 grams, with a diameter of 30.61 millimeters, and the coin retains the familiar 90% silver composition for the earlier proofs. These specifications ensure that the coin carries a significant heft and a distinct metallic ring that differs from modern clad coinage.
Composition: 90% Silver, 10% Copper (Business Strike)
Weight: 12.5 grams
Diameter: 30.61 mm
Edge: Reeded
Minting Statistics and Mintage Marks
Understanding where a coin was produced is vital for valuation, and the 1958 Liberty Half Dollar provides clear data in this regard. The Philadelphia Mint, denoted by the absence of a mint mark, produced the highest volume of the date. The Denver Mint, identified by the "D" mark, also participated in production. San Francisco, marked by the "S" mint mark, struck the coins intended for collectors in proof format. The distribution of these mint marks directly impacts the rarity and desirability of specific specimens in today's market.
