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Approximately 75 K-6 slugs exist in private hands, around ten of which grade mint state. The K-6 obverse die is known to exhibit die rust in later states. The 887 Obverse die is paired with two reverse dies, and it is the reverse die that determines whether an 1851 Humbert 887-Thousandths $50 is a K-6 or K-7. The K-6 reverse die has a large “target” at its center and has outer engine turning that often extends beyond the edge of the coin. Two were found on the S.S. Central America. A pair of Kagin-6 slugs are known in proof format. The first of these was owned by Augustus Humbert. The second was sent to the U.S. Mint, and is now in the collection of the Smithsonian Institution.
Obverse Description
Eagle clutching shield and scroll AUGUSTUS HUMBERT UNITED STATES ASSAYER OF GOLD CALIFORNIA 1851 UNITED STATES OF AMERICA. FIFTY DOLLS. 887 THOUs.
Reverse Description
Engine turning
Catalog Information
GSID:
11786
Designer:
Augustus Humbert
Obverse Designer:
Augustus Humbert
Obverse Lettering:
AUGUSTUS HUMBERT UNITED STATES ASSAYER OF GOLD CALIFORNIA 1851 UNITED STATES OF AMERICA. FIFTY DOLLS. 887 THOUs.
Reverse Designer:
Augustus Humbert
Strike Type:
Business
Coin Shape:
Octagonal
Edge:
Reeded
Variety:
Humbert
Variety 2:
Target Rev, 887 THOUS, Reeded Edge, K-6
Coin Date:
1851
Denomination:
G$50
Designation:
MS
Mint Location:
California
Mintage:
Approx. 75 known
Coinage Type:
Private & Pioneer Gold
Coinage Years:
1851-1852
Composition:
Gold
Rarity:
L5
PCGS #:
10214
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Coin Value History
1851 G$50 Humbert, Target Rev, 887 THOUS, Reeded Edge, K-6 MS
Value By Grade
1851 G$50 Humbert, Target Rev, 887 THOUS, Reeded Edge, K-6 MS
CPG (retail) values
Currency
Grade Range
Grading Authority
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Pricing
Values
Greysheet & CPG® Values
| Grade | CAC | CPG Value (Retail) | Greysheet Price (Wholesale) |
|---|---|---|---|
| MS64 |
|
$516,000 | $1,234 |
| MS64 | - | $450,000 | $1,234 |
| MS63 |
|
$1,234 | $1,234 |
| MS63 | - | $1,234 | $1,234 |
| MS62 |
|
$1,234 | $1,234 |
| MS62 | - | $1,234 | $1,234 |
| MS61 |
|
$1,234 | $1,234 |
| MS61 | - | $1,234 | $1,234 |
| MS60 |
|
$1,234 | $1,234 |
| MS60 | - | $1,234 | $1,234 |
| AU58 |
|
$1,234 | $1,234 |
| AU58 | - | $1,234 | $1,234 |
| AU55 |
|
$1,234 | $1,234 |
| AU55 | - | $1,234 | $1,234 |
| AU53 |
|
$1,234 | $1,234 |
| AU53 | - | $1,234 | $1,234 |
| AU50 |
|
$1,234 | $1,234 |
| AU50 | - | $1,234 | $1,234 |
| XF45 |
|
$1,234 | $1,234 |
| XF45 | - | $1,234 | $1,234 |
| XF40 |
|
$1,234 | $1,234 |
| XF40 | - | $1,234 | $1,234 |
| VF35 |
|
$1,234 | $1,234 |
| VF35 | - | $1,234 | $1,234 |
| VF30 |
|
$1,234 | $1,234 |
| VF30 | - | $1,234 | $1,234 |
| VF25 |
|
$1,234 | $1,234 |
| VF25 | - | $1,234 | $1,234 |
| VF20 |
|
$1,234 | $1,234 |
| VF20 | - | $1,234 | $1,234 |
| F15 |
|
$1,234 | $1,234 |
| F15 | - | $1,234 | $1,234 |
| F12 |
|
$1,234 | $1,234 |
| F12 | - | $1,234 | $1,234 |
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS61 NGC. K-6, Low R.5. ...
$103,700
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-5-. 887 THOUS., Target Reverse. VF Details--Cleaned (PCGS).
$16,800
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-5-. 887 THOUS., First Target Reverse. EF-40 (NGC).
$36,000
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. VF35 PCGS. K-7, R.5....
$28,800
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. XF45 NGC. K-6, Low R.5....
$32,400
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS60 NGC. K-7, R.5....
$87,000
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. AU53+ PCGS. CAC. K-6, Low R.5....
$66,000
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-5-. 887 THOUS., First Target Reverse. AU-58 (NGC). CMQ.
$75,000
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS63 NGC. K-6, Low R.5....
$186,000
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. AU55 PCGS. CAC. K-6, R.4....
$72,000
1851 Augustus Humbert $50. Reeded Edge. K-7. Rarity-6-. 887 THOUS., Second Target Reverse. VF-20 (PCGS). CMQ.
$23,400
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. AU50 NGC. K-7, R.5....
$43,200
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. VF25 PCGS. K-7, R.7. ...
$28,800
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-4. 887 THOUS., Target Reverse. MS-62 (PCGS). CAC. CMQ.
$204,000
1851 Augustus Humbert $50. Reeded Edge. K-7. Rarity-7. 887 THOUS., Target Reverse. MS-64 (PCGS). CAC.
$432,000
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-4. 887 THOUS., Target Reverse. Fine-12 (PCGS). CAC.
$18,600
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-4. 887 THOUS., Target Reverse. VF-30 (PCGS).
$25,200
1851 $50 Humbert Slug PCGS F15 (Reeded Edge 887 Thous)
$18,500
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS61 PCGS. K-7, R.4, ...
$115,200
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-5-. 887 THOUS., First Target Reverse. VF-20 Details--Damaged, Tooled, Date Completely Re-Engraved (ANACS).
$14,400
1851 G$50 Humbert, 880 THOUS, 50 Rev, Lettered Edge, K-1 MS
Worth: $42,500 – $480,000
1851 G$50 Humbert, 880 THOUS, No 50, Lettered Edge, K-2 MS
Worth: $45,000 – $312,000
1851 G$50 Humbert, 887 THOUS, 50 Rev, Lettered Edge, K-4 MS
Worth: $50,000 – $624,000
1851 G$50 Humbert, Target Rev, 880 THOUS, Reeded Edge, K-5 MS
Worth: $25,000 – $200,000
1851 G$50 Humbert, Target Rev, 887 THOUS, Reeded Edge, K-6 PR
Worth: $5,000,000 – $5,000,000
1851 G$50 Humbert, Target Rev, 887 THOUS, No 50, Lettered Edge, K-7 MS
Worth: $42,000 – $108,000
1852 G$50 Humbert, Target Rev, 887 THOUS, Reeded Edge, K-11 MS
Worth: $22,000 – $264,000
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Events
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