1971 “No S” Proof Jefferson Nickel: The Only Missing Mintmark in the Series

The 1971 No S Error – 1,655 examples – Check your Proof Sets!

The 1971 “No S” Proof Jefferson Nickel (FS-501) ranks among the most important modern United States coin rarities. Moreover, it holds a unique distinction. It remains the only proof coin in the entire Jefferson Nickel series struck without its intended mintmark.

Collectors often overlook Jefferson Nickels when discussing elite modern errors. However, this coin demands serious attention. A simple oversight at the Mint created one of the most coveted proof varieties of the 20th century.

The Origin of the 1971 No S Error – A Mintmark Oversight

In 1971, the San Francisco Mint struck all proof coinage. However, the Philadelphia Mint prepared the dies. At the time, mint employees punched mintmarks into proof dies by hand. That manual process created risk.

In this case, one obverse die left Philadelphia without receiving the required “S” mintmark. Consequently, San Francisco struck proof nickels using a die that lacked its identifying mintmark.

The error affected just one obverse die.

Importantly, this mistake occurred during an era when several No-S proof varieties surfaced. Other denominations experienced similar omissions, including proof dimes in 1968, 1970, 1975, and 1983, and later the 1990 No-S Lincoln Cent. Yet none share the same distinction within their series as the 1971 nickel.

This issue stands alone in the Jefferson Nickel series.

Discovery and Authentication

The first reported example surfaced in a 1971 Proof Set on December 29, 1971. Numismatic experts quickly investigated. Subsequently, the United States Mint confirmed the coin’s authenticity.

Because the Mint sold proof coins only in sets, collectors cannot find this variety in circulation. Instead, every known specimen originated in a 1971 Proof Set.

Official Mintage: A Rare Precise Figure

Many modern mintmark errors lack documented production totals. However, this case differs.

The United States Mint reported that 1,655 examples of the 1971 No S Proof Jefferson Nickel were struck. That unusually precise figure sets this variety apart from other No-S errors.

Nevertheless, survival estimates suggest far fewer remain today.

Third-party grading data supports that conclusion. For example, certification totals from major grading services show only a fraction of the reported mintage. Many coins likely remain undiscovered in original proof sets.

Design and Specifications

The 1971 No S Proof Nickel belongs to the long-running Jefferson Nickel series, which began in 1938.

Composition:  75% copper, 25% nickel

Obverse

Felix Schlag designed the obverse portrait of Thomas Jefferson facing left. The motto IN GOD WE TRUST appears along the left periphery. Meanwhile, LIBERTY and the date 1971 appear on the right.

Normally, an “S” mintmark sits just below the date. On this variety, that mintmark does not appear. Schlag’s initials “FS” rest below Jefferson’s bust.

Reverse

Monticello stands centered on the reverse. The name MONTICELLO appears beneath the building. Additionally, E PLURIBUS UNUM and UNITED STATES OF AMERICA frame the upper and lower periphery. The denomination FIVE CENTS appears in a semicircle below.

Rarity and Population Data

Although the Mint reported 1,655 struck, certified populations tell a more nuanced story.

Several hundred examples exist in standard Proof grades without cameo contrast.

Cameo-designated pieces number in the low hundreds.

Deep Cameo examples remain scarce.

Estimates suggest no more than about 50 Deep Cameo examples exist.

In PR69 Ultra/Deep Cameo, population figures remain extremely small, with none finer reported at the top tier.

Therefore, collectors compete fiercely for high-grade examples.

Deep Cameo: Why It Matters

During the early 1970s, proof coins did not consistently display strong frosted devices. In fact, heavy contrast became common only in the late 1970s and early 1980s.

As a result, Deep Cameo examples of the 1971 No S nickel remain exceptional.

The finest certified coins command significant premiums. In 2016, a PCGS PR69 Deep Cameo specimen realized $7,637.50 at Heritage Auctions, establishing a public record for the variety at that time.

Current Market Value

Values vary by grade and contrast designation:

• PR63 (no cameo): Around $800
• PR68: Approximately $1,100
• PR68CAM: Slightly higher than standard PR68
• PR68DCAM: Around $2,850
• PR69DCAM: Record results exceed $7,600

Naturally, eye appeal, certification, and market timing influence prices.

Even so, the 1971 No S Proof Jefferson Nickel remains one of the most affordable elite modern rarities. That balance of scarcity and attainability fuels strong demand.

How to Verify a 1971 No S Proof Nickel

Collectors must exercise caution. A normal 1971 Philadelphia circulation nickel lacks a mintmark. However, it differs dramatically from a proof strike.

Look for these diagnostics:

• Mirror-like fields with sharp reflectivity.
• Squared rims typical of proof coinage.
• Exceptional strike quality, especially on Monticello.
• Origin from a 1971 Proof Set.

Circulation strikes display satin or business-strike surfaces. They lack the reflective fields and refined detail of a proof.

Authentication by a major grading service remains the safest path.

Why the 1971 No S Nickel Matters

The 1971 No S Proof Jefferson Nickel represents more than a mint error. It reflects an era when mintmarks were punched manually. It also documents a transitional period in modern proof production.

Most importantly, it stands alone.

No other Jefferson Nickel proof issue lacks its intended mintmark. Therefore, the 1971 No S Proof (FS-501) occupies a permanent place among the most important modern United States coin varieties.

For collectors pursuing key modern errors, this coin remains essential.

Sources

• United States Mint confirmation of mintage figure (1,655 struck)
• Walter Breen, Walter Breen’s Complete Encyclopedia of U.S. and Colonial Coins (1988)
• Joshua McMorrow-Hernandez, “The 1971 No-S Proof Nickel,” CoinWeek (September 30, 2021)
• Heritage Auctions public sale records (2016)

CoinWeek Insight:

Opportunities still exist. Unopened 1971 Proof Sets remain in dealer inventories and private holdings. While most sets contain the normal 1971-S nickel, the possibility of discovery continues to drive collector excitement.

The 1971 “No S” Proof Jefferson Nickel endures as one of modern numismatics’ most compelling stories—proof that even a small oversight can create a legendary rarity.