The 1958 Benjamin Franklin half dollar represents a specific moment in American numismatic history, marking the final year before the design was altered to honor John F. Kennedy. Struck at the Denver and Philadelphia mints, these coins are composed of 90% silver and 10% copper, giving them a intrinsic melt value that remains a primary consideration for investors. For collectors, the year 1958 is significant as it bridges the gap between the original Franklin design and the subsequent Kennedy series, making it a key date for specialists seeking to complete a set.
Design and Mint Mark Details
Obverse of the 1958 Franklin half dollar features the iconic profile of Benjamin Franklin, rendered by John R. Sinnock. The design includes the inscriptions "LIBERTY" above Franklin's shoulder and "IN GOD WE TRUST" to the right. Below Franklin's bust, the date "1958" is prominently displayed. The reverse showcases the Liberty Bell, centered within a stylized eagle, adhering to the legal requirement that an eagle appear on the reverse of the half dollar. Mint marks are located on the reverse, below the bell; a "D" indicates Denver production, while Philadelphia issues bear no mint mark.
Grading Standards and Condition
Grading is a critical factor in determining the value of a 1958 Benjamin Franklin half dollar. Professional services like PCGS and NGC assign grades ranging from "Good-4" to "Mint State-70." A coin graded MS-60 will show significant wear with soft details, whereas an MS-65 specimen will be full strike with original luster and minimal contact marks. Eye appeal plays a substantial role in the marketability of these coins, as collectors often seek pieces with vibrant toning and clean surfaces.
Key Grading Points
Check the hair details above Franklin's ear for wear.
Examine the high points of the Liberty Bell for softness.
Assess the luster and toning for originality.
Verify the sharpness of the stars on the reverse.
Market Value and Pricing
The value of a 1958 Benjamin Franklin half dollar is not static; it fluctuates based on silver prices and collector demand. While the silver melt provides a floor, condition rarity dictates the premium. The 1958-D is generally more valuable in lower grades due to lower mintage figures compared to the Philadelphia counterpart. However, high-grade examples of either date can command significant premiums at auction, particularly if they exhibit exceptional toning or cameo contrast.
Rarity and Key Dates
While the 1958 issues are not considered key dates in the Franklin series, they hold importance as the final year of the design. The true rarity in this series often lies in the low-mintage Philadelphia issues of the 1940s. Nevertheless, the 1958 coins are vital for collectors aiming to build a complete type set of 20th-century American coinage. The transition year status makes these pieces historically significant, representing the end of an era for the Founding Father design.
