Whitman Expo
On September 1, Stack's Bowers conducted a Rarities Night session in California as part of this firm's post-ANA World's Fair of Money® auction extravaganza.
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There are somewhere between 100 and 200 Kagin-5 Humbert slugs in private hands, nearly 20 of which grade mint state. The single finest of these was dug up near San Francisco in 1973, and grades Gem BU. Four examples of this variety were discovered on the S.S. Central America.
Obverse Description
Eagle clutching shield and scroll AUGUSTUS HUMBERT UNITED STATES ASSAYER OF GOLD CALIFORNIA 1851 UNITED STATES OF AMERICA. FIFTY DOLLS. 880 THOUs.
Reverse Description
Engine turning
Catalog Information
GSID:
11785
Designer:
Augustus Humbert
Obverse Designer:
Augustus Humbert
Obverse Lettering:
AUGUSTUS HUMBERT UNITED STATES ASSAYER OF GOLD CALIFORNIA 1851 UNITED STATES OF AMERICA. FIFTY DOLLS. 880 THOUs.
Reverse Designer:
Augustus Humbert
Strike Type:
Business
Coin Shape:
Octagonal
Edge:
Reeded
Variety:
Humbert
Variety 2:
Target Rev, 880 THOUS, Reeded Edge, K-5
Coin Date:
1851
Denomination:
G$50
Designation:
MS
Mint Location:
California
Mintage:
100–200 known
Coinage Type:
Private & Pioneer Gold
Coinage Years:
1851-1852
Composition:
Gold
Rarity:
4
PCGS #:
10211
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Subject: I would like to contribute catalog info to CDN for 1851 G$50 Humbert, Target Rev, 880 THOUS, Reeded Edge, K-5 MS
Body: Referring page: http://www.greysheet.com/prices/item/1851-humbert-fifty-dollar-reeded-edge-880-thous-kagin-5-territorial-gold-coinage/gsid/11785 GSID: 11785 Title: 1851 G$50 Humbert, Target Rev, 880 THOUS, Reeded Edge, K-5 MS
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Coin Value History
1851 G$50 Humbert, Target Rev, 880 THOUS, Reeded Edge, K-5 MS
Value By Grade
1851 G$50 Humbert, Target Rev, 880 THOUS, Reeded Edge, K-5 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) |
|---|---|---|---|
| MS62 |
|
$240,000 | $1,234 |
| MS62 | - | $180,000 | $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 |
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, 887 THOUS, Reeded Edge, K-6 MS
Worth: $19,000 – $430,000
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
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 880 Thous. AU53 PCGS. K-5, R.4. ...
$56,120
1851 Augustus Humbert $50. Reeded Edge. K-5. Rarity-4. 880 THOUS., Target Reverse. EF-40 (PCGS). Gold CAC. OGH.
$91,500
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 880 Thous. AU55 NGC. K-5, R.4. ...
$67,100
1851 Augustus Humbert $50. Reeded Edge. K-5. Rarity-4. 880 THOUS., Target Reverse. AU-50 (PCGS).
$45,600
1851 Augustus Humbert $50. Reeded Edge. K-5. Rarity-4. 880 THOUS., Target Reverse. EF Details--Cleaned (PCGS).
$24,000
1851 Augustus Humbert $50. Reeded Edge. K-5. Rarity-4. 880 THOUS., Target Reverse. MS-62 (NGC).
$132,000
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 880 Thous. VF35 PCGS. K-5, R.4....
$34,800
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 880 Thous. MS61 NGC. K-5, Low R.5. ...
$81,000
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 880 Thous. XF45 PCGS. CAC. K-5, R.4....
$40,800
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 880 Thous., AU58 PCGS. CAC. K-5, Low R.5. ...
$156,000
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 880 Thous. VF30 NGC. K-5, Low R.5. ...
$25,850
1851 $50 RE Humbert Fifty Dollar, 880 Thous. VF25 PCGS. K-5, Low R.5. ...
$18,400
1851 $50 RE Humbert Fifty Dollar, 880 Thous.--Damaged--NCS. VF. K-5, Low R.5. ...
$18,400
$39,100
$27,312
$5,175
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 880 Thous. AU53 NGC. K-5, R.4. ...
$43,200
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 880 Thous. XF40 NGC. K-5, Low R.5. ...
$26,504
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 880 Thous. AU55 NGC. CAC. K-5, R.4....
$63,000
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 880 Thous. AU50 NGC. K-5, Low R.5....
$27,600
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Tuesday, September 1, 2026
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Tuesday, September 1, 2026
Heritage Auctions: World & Ancient Coins ANA Signature Auction & Platinum Session
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Tuesday, September 1, 2026