The Finest Known 1828/7 Half Eagle: Rediscovering the Flanagan-Bell Coin

A Hidden Gem Resurfaces After Eight Decades

By CoinWeek Staff

When numismatists speak of rediscoveries that reshape the landscape of early American gold, few stories match the reemergence of the 1828/7 Capped Head Left Half Eagle once owned by James A. Stack, Sr., the Flanagan-Bell coin. Unseen since its last auction appearance in 1944, this remarkable piece spent more than eighty years quietly resting in the Stack Collection. Now certified MS-64+ by PCGS and carrying both CAC and CMQ-X approvals, it has been confirmed as the finest surviving example of its date and die marriage.

Early U.S. Gold and the Challenge of the 1820s

By the late 1820s, the United States Mint faced growing difficulties striking gold coinage that would remain in domestic circulation. The 1828 half eagle belongs to the Capped Head Left type designed by William Kneass, first introduced in 1813. These coins were struck in limited numbers as the value of gold in world markets made them prone to melting and export.

Between 1823 and 1829, production totals dwindled, and many pieces were melted soon after issue. Surviving examples from this era are scarce, and fully Mint State specimens are exceptional. Against that backdrop, any 1828 Half Eagle commands attention; an overdate example that reveals an evolution in die use offers an even deeper window into early Mint practice.

Why the 1828/7 Overdate Matters

The 1828/7 overdate shows that a die prepared for 1827 was repunched with an 8, producing the distinctive “8 over 7” visible in the date. Such overdates are more than curiosities. They document the Mint’s frugality and technical limitations at a time when steel dies were hand-engraved and reused whenever possible. In fact other overdates in the series also exist.

Researchers classify four die varieties for the year: two overdates (BD-1 and BD-2) and two perfect dates (BD-3 and BD-4). Altogether, fewer than twenty 1828 Half Eagles survive in any form. The overdate varieties are rarer still, with just six coins known combining both overdates.

A Coin of Unparalleled Preservation

The Stack specimen stands out not only for rarity but also for its remarkable preservation. Its luster radiates in cartwheel fashion, blending peripheral brilliance with softer satiny centers. The fields exhibit the near-mirror smoothness often associated with prooflike strikes of the era. A delicate blend of green-gold and pale yellow toning gives the piece a natural warmth rarely seen on early gold, much of which has been brightened by later cleaning.

Close inspection reveals only the faintest evidence of handling: a shallow line on Liberty’s cheek and a few microscopic hairlines under magnification. The devices rise sharply from the surface, with full denticles and complete star detail. For a coin struck nearly two centuries ago under primitive press conditions, the sharpness and integrity of this piece are extraordinary.

Tracing the Rarity: Known Examples of the 1828/7

Scholars have documented only six confirmed 1828/7 Half Eagles. Two of these are of the BD-2 die marriage, the variety of the Stack coin. The others belong to the BD-1 pairing.

Their current known roster includes:

• 1828/7 BD-1 (Obverse 1, Reverse of 1826)
• The Harry W. Bass, Jr. Foundation coin – PCGS MS-64 (illustrated in the Bass-Dannreuther reference).
• The Byron Reed coin – NGC MS-64, CAC.
• The Eliasberg-Pogue coin – PCGS MS-63, CAC.
• The Lilly-Smithsonian Institution coin – Choice AU.
• 1828/7 BD-2 (Obverse 1, Reverse of 1828)
• The James A. Stack, Sr. coin – PCGS MS-64+, CAC, CMQ-X.
• The Keston-Jacobson coin – NGC MS-63.

This list underscores just how small the surviving population is and how significant the Stack piece becomes as the single finest representative of its die pairing.

From Obscurity to Recognition

Before its rediscovery, this coin’s exact die combination was unknown. In his monumental Early U.S. Gold Coin Varieties (2006), researcher John Dannreuther cataloged the BD-2 variety after careful study of known specimens and the notes of Harry W. Bass, Jr. Yet even Bass, whose collection sought completeness by die state, never owned a BD-2.

The breakthrough came through earlier auction research. In the mid-1990s, numismatist Andrew W. Pollock III noticed that the 1828/7 coin sold in several earlier sales, the 1955 Baldenhofer, 1962 Wolfson, and 1989 Brooks sales, displayed the reverse used for the perfect-date 1828 Half Eagle. Later confirmed in Superior’s 1996 Michael I. Keston sale, that example was graded MS-63 (NGC).

Unbeknownst to researchers, however, the Stack Collection had harbored a second, finer example of the same rare die pairing since 1944. Its emergence brings the total BD-2 population to two and establishes a new benchmark for the variety’s condition.

The Rarity in Perspective

Rarity ratings compiled by Dannreuther list the perfect-date BD-3 and BD-4 varieties as Rarity-8 and Rarity-6+, respectively, each seldom encountered. Yet the BD-1 and BD-2 overdates surpass them in scarcity and intrigue. Stack’s Bowers last offered an 1828/7 Half Eagle of any variety in the 2016 Pogue IV sale, a gap of nearly a decade.

For collectors of early gold by die marriage, the 1828/7 BD-2 represents a summit achievement. The combination of absolute rarity, superior preservation, and historical importance makes this coin a cornerstone for connoisseurs seeking to complete a type or variety set of Capped Head Left Half Eagles.

Artistry, Technology, and Survival

Early Mint technicians worked under immense pressure to balance economy and precision. Dies were painstakingly hand-prepared, and the decision to reuse a dated 1827 obverse underscores the realities of 19th-century Mint operations. The 1828/7 overdate literally carries the story of that decision in its digits.

Each surviving specimen, then, is both a monetary artifact and a record of the Mint’s evolving technology. That this piece survived untouched through decades of bullion melts, wars, and market upheavals only enhances its mystique.

A Discovery That Rewrites Provenance

The revelation that two BD-2 examples exist corrects decades of assumption. Previously, the single known BD-2 coin was thought to encompass every recorded appearance of the type. The Stack specimen, now confirmed as distinct, forces scholars to rewrite the provenance of earlier sales.

This discovery also bridges collectors across generations, from early gold pioneer Harry Bass and cataloger John Dannreuther to today’s numismatists, who can now study both coins side by side for the first time.

A Once-in-a-Lifetime Opportunity

Even if this piece were “only” one of six known 1828/7 Half Eagles, it would command immediate attention. But as the finest representative of the rare BD-2 variety, freshly confirmed after eight decades of seclusion, it stands as a landmark in American numismatics.

For advanced collectors, opportunities of this caliber are measured not in years but in lifetimes.

This coin will be sold at the February 2026 Stack’s Bowers Showcase Auction as part of the James A. Stack, Sr. Collection, Part II as Lot 23015 on Feb 3, 2026