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1851 G$50 Humbert, Target Rev, 887 THOUS, Reeded Edge, K-6 MS

Greysheet & CPG® Values
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1851 G$50  Humbert, Target Rev, 887 THOUS, Reeded Edge, K-6 MS
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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
Value by grade is available to subscribers. Subscribe to View

Values

Greysheet & CPG® Values
GSID:11786 PCGS:10214 Shop related

Values

Greysheet & CPG® Values
Greysheet & CPG® Values by grade for 1851 G$50 Humbert, Target Rev, 887 THOUS, Reeded Edge, K-6 MS
Grade CAC CPG Value (Retail) Greysheet Price (Wholesale)
MS64 CAC $516,000 $1,234
MS64 - $450,000 $1,234
MS63 CAC $1,234 $1,234
MS63 - $1,234 $1,234
MS62 CAC $1,234 $1,234
MS62 - $1,234 $1,234
MS61 CAC $1,234 $1,234
MS61 - $1,234 $1,234
MS60 CAC $1,234 $1,234
MS60 - $1,234 $1,234
AU58 CAC $1,234 $1,234
AU58 - $1,234 $1,234
AU55 CAC $1,234 $1,234
AU55 - $1,234 $1,234
AU53 CAC $1,234 $1,234
AU53 - $1,234 $1,234
AU50 CAC $1,234 $1,234
AU50 - $1,234 $1,234
XF45 CAC $1,234 $1,234
XF45 - $1,234 $1,234
XF40 CAC $1,234 $1,234
XF40 - $1,234 $1,234
VF35 CAC $1,234 $1,234
VF35 - $1,234 $1,234
VF30 CAC $1,234 $1,234
VF30 - $1,234 $1,234
VF25 CAC $1,234 $1,234
VF25 - $1,234 $1,234
VF20 CAC $1,234 $1,234
VF20 - $1,234 $1,234
F15 CAC $1,234 $1,234
F15 - $1,234 $1,234
F12 CAC $1,234 $1,234
F12 - $1,234 $1,234

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Auction Prices

Recent public sale records for this item
See all
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. VF35 PCGS. K-6, Low R.5. ...
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. VF35 PCGS. K-6, Low R.5. ...
$47,580
Sold 9/2/2026
Heritage Auctions
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS61 NGC. K-6, Low R.5. ...
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS61 NGC. K-6, Low R.5. ...
$103,700
Sold 1/14/2026
Heritage Auctions
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-5-. 887 THOUS., Target Reverse. VF Details--Cleaned (PCGS).
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-5-. 887 THOUS., Target Reverse. VF Details--Cleaned (PCGS).
$16,800
Sold 12/23/2025
Stack’s Bowers Galleries
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-5-. 887 THOUS., First Target Reverse. EF-40 (NGC).
$36,000
Sold 12/9/2025
Stack’s Bowers Galleries
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. XF45 NGC. K-6, Low R.5....
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. XF45 NGC. K-6, Low R.5....
$32,400
Sold 10/2/2025
Heritage Auctions
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS60 NGC. K-7, R.5....
$87,000
Sold 7/17/2025
Heritage Auctions
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. AU53+ PCGS. CAC. K-6, Low R.5....
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. AU53+ PCGS. CAC. K-6, Low R.5.... CAC approved
$66,000
Sold 1/16/2025
Heritage Auctions
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-5-. 887 THOUS., First Target Reverse. AU-58 (NGC). CMQ.
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-5-. 887 THOUS., First Target Reverse. AU-58 (NGC). CMQ.
$75,000
Sold 11/19/2024
Stack’s Bowers Galleries
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. AU55 PCGS. CAC. K-6, R.4....
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. AU55 PCGS. CAC. K-6, R.4.... CAC approved
$72,000
Sold 8/14/2024
Heritage Auctions
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS63 NGC. K-6, Low R.5....
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS63 NGC. K-6, Low R.5....
$186,000
Sold 8/14/2024
Heritage Auctions
1851 Augustus Humbert $50. Reeded Edge. K-7. Rarity-6-. 887 THOUS., Second Target Reverse. VF-20 (PCGS). CMQ.
$23,400
Sold 8/13/2024
Stack’s Bowers Galleries
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. VF25 PCGS. K-7, R.7. ...
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. VF25 PCGS. K-7, R.7. ...
$28,800
Sold 1/11/2024
Heritage Auctions
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. AU50 NGC. K-7, R.5....
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. AU50 NGC. K-7, R.5....
$43,200
Sold 1/11/2024
Heritage Auctions
1851 Augustus Humbert $50. Reeded Edge. K-7. Rarity-7. 887 THOUS., Target Reverse. MS-64 (PCGS). CAC.
1851 Augustus Humbert $50. Reeded Edge. K-7. Rarity-7. 887 THOUS., Target Reverse. MS-64 (PCGS). CAC. CAC approved
$432,000
Sold 8/6/2020
Stack’s Bowers Galleries
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-4. 887 THOUS., Target Reverse. Fine-12 (PCGS). CAC.
1851 Augustus Humbert $50. Reeded Edge. K-6. Rarity-4. 887 THOUS., Target Reverse. Fine-12 (PCGS). CAC. CAC approved
$18,600
Sold 3/19/2020
Stack’s Bowers Galleries
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. VF30 PCGS Secure. K-6, R.4. ...
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. VF30 PCGS Secure. K-6, R.4. ...
$25,200
Sold 10/11/2018
Heritage Auctions
1851 $50 Humbert Slug PCGS F15 (Reeded Edge 887 Thous)
1851 $50 Humbert Slug PCGS F15 (Reeded Edge 887 Thous)
$18,500
Sold 5/15/2017
DLRC
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS62 PCGS. K-6, R.4. ...
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS62 PCGS. K-6, R.4. ...
$440,625
Sold 1/12/2014
Heritage Auctions
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. VF35 PCGS. K-7, R.5....
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. VF35 PCGS. K-7, R.5....
$28,800
Sold 11/13/2025
Heritage Auctions
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS61 PCGS. K-7, R.4, ...
1851 $50 RE Humbert Fifty Dollar, Reeded Edge, 887 Thous. MS61 PCGS. K-7, R.4, ...
$115,200
Sold 12/15/2022
Heritage Auctions
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