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1828 Curl 2, Knob
| Weight | 13.48 g |
| Diameter | 32.5 mm |
| Mint | Philadelphia |
| Strike | Circulation strike |
| Mintage | 3,075,200 Combined mintage for all 1828 varieties |
| Edge | Lettered (FIFTY CENTS OR HALF A DOLLAR) |
| Alignment | ↑↓ Coin |
| Composition | 89.24% Silver, 10.76% Copper |
| Melt value | — |
| Designer | John Reich |
| Collector's Key ID | CK-3758 |
Collection
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Other recorded varieties for 1828:
- 1828 Curl 2, No Knob · Curl 2, No Knob
- 1828 Square 2, Large 8s · Square 2, Large 8s
- 1828 Square 2, Small 8, Large Letters · Square 2, Small 8, Large Letters
- 1828 Square 2, Small 8s, Small Letters · Square 2, Small 8s, Small Letters
External references
The 1828 Capped Bust Half Dollar with Curl Base 2 and Knob Top on the 2 represents one specific date-punch combination among the five distinct configurations cataloged for the year. The total reported mintage of 3,075,200 pieces was distributed across multiple working dies, and the Curl Base 2 with Knob Top punch style produced a recognizable subgroup within that production. The knob refers to a small rounded protrusion at the upper terminal of the digit 2, where the top of the numeral curls back on itself in a tight loop visible under magnification. Combined with the curved lower foot of the Curl Base style, this gives the date its distinctive appearance that allows attribution to specific Overton numbers within the 1828 listings.
John Reich's Capped Bust design maintained the established standards for the denomination, including 89.24 percent silver, a weight of 13.48 grams, a diameter of 32.5 millimeters, and the lettered edge inscription FIFTY CENTS OR HALF A DOLLAR. Authentication of the Curl 2 with Knob Top variety hinges on two diagnostic features in the date area. The lower terminal of the 2 must show the soft curved foot of the Curl Base punch, while the upper portion must display the distinct rounded knob where the digit closes in on itself. Both features must be present on the same coin, since these are produced by a single date logotype punch rather than separate elements. Heritage Auctions consistently identifies this variety through close photographic examination of the date and matching to published Overton plates.
Population data from Professional Coin Grading Service (PCGS) and Numismatic Guaranty Company (NGC) shows the Knob Top subgroup is available in circulated grades, though specific die marriages within it can range from common to legitimately scarce. Mint state examples appear at major auctions with enough frequency to support an active collector market but not so often that they have become routine acquisitions. Variety specialists tracking the complete Overton catalog treat the Knob 2 dies as essential components of a thorough 1828 representation. For deeper context on the design history, the Philadelphia Mint die preparation methods, and the long arc of this denomination, see the Capped Bust Half Dollar series history.
Reference data only — not an appraisal.
| Grade | Description | Low | High |
|---|---|---|---|
| G-4 | Good (G) | — | — |
| VG-8 | Very Good (VG) | — | — |
| F-12 | Fine (F) | — | — |
| VF-20 | Very Fine (VF) | — | — |
| EF-40 | Extremely Fine (EF) | — | — |
| AU-50 | About Uncirculated (AU) | — | — |
| MS-60 | Uncirculated (MS) | — | — |
| MS-63 | Choice Uncirculated (MS) | — | — |
How many 1828 Curl 2, Knob Capped Bust Half Dollars were minted?
What is a 1828 Curl 2, Knob Capped Bust Half Dollar made of?
What is the melt value of a 1828 Curl 2, Knob Capped Bust Half Dollar?
Is the 1828 Curl 2, Knob Capped Bust Half Dollar a key date?
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