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In 1855, Ferdinand Grüner cut the dies for a round-format fifty-dollar gold coin for Kellogg & Co., but coinage seems to have been limited to presentation pieces. Only 13 to 15 pieces are known to exist. A "commemorative restrike" was made in 2001 using transfer dies made from the original and gold recovered from the SS Central America. These pieces have the inscription S.S. CENTRAL A M E R I C A GOLD, C.H.S. on the reverse ribbon.
Obverse Description
Liberty Head with KELLOGG & CO on diadem 1855 13 stars around F. GRUNER at base of neck
Reverse Description
Eagle clutching shield and ribbon SAN FRANCISCO CALIFORNIA. FIFTY DOLLS. 1809 GRS 887 THOUS
Catalog Information
GSID:
11799
Designer:
Ferdinand Grüner
Obverse Designer:
Ferdinand Grüner
Obverse Lettering:
KELLOGG & CO, 1855, F. GRUNER
Reverse Designer:
Ferdinand Grüner
Reverse Lettering:
SAN FRANCISCO CALIFORNIA. FIFTY DOLLS. 1809 GRS 887 THOUS
Fineness:
0.887
Weight (gr):
84.822 gr
Weight (oz):
2.7271 oz
Precious Metal Weight:
2.419 oz
Strike Type:
Proof
Coin Shape:
Round
Edge:
Reeded
Variety:
Kellogg & Co.
Variety 2:
K-4
Coin Date:
1855
Denomination:
G$50
Designation:
PR
Mint Location:
San Francisco
Mintage:
13 known
Coinage Type:
Private & Pioneer Gold
Coinage Years:
1854-1855
Composition:
Gold
Rarity:
H6
PCGS #:
10228
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Subject: I would like to contribute catalog info to CDN for 1855 G$50 Kellogg & Co., K-4 PR
Body: Referring page: http://www.greysheet.com/prices/item/1855-kellogg-and-co-five-dollar-kagin-4-territorial-gold-coinage-proof/gsid/11799 GSID: 11799 Title: 1855 G$50 Kellogg & Co., K-4 PR
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Coin Value History
1855 G$50 Kellogg & Co., K-4 PR
Value By Grade
1855 G$50 Kellogg & Co., K-4 PR
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) |
|---|---|---|---|
| PR64 |
|
$1,368,000 | $1,234 |
| PR64 | - | $1,140,000 | $1,234 |
| PR63 |
|
$1,234 | $1,234 |
| PR63 | - | $1,234 | $1,234 |
| PR62 |
|
$1,234 | $1,234 |
| PR62 | - | $1,234 | $1,234 |
| PR61 |
|
$1,234 | $1,234 |
| PR61 | - | $1,234 | $1,234 |
| PR60 |
|
$1,234 | $1,234 |
| PR60 | - | $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 |
1854 G$20 Kellogg & Co., Short Arrows, K-1 MS
Worth: $6,000 – $540,000
1854 G$20 Kellogg & Co., Short Arrows, K-1 SP
1854 G$20 Kellogg & Co., Long Arrows, K-2 MS
1855 G$20 Kellogg & Co., Long Arrows, K-3 MS
Worth: $8,000 – $57,600
1855 G$20 Kellogg & Co., Medium Arrows, K-3a MS
1855 G$20 Kellogg & Co., Short Arrows, K-3b MS
Worth: $18,000 – $22,000
1855 G$50 Kellogg & Co., Commemorative Restrike MS
Worth: $10,546 – $11,046
1855 G$50 Kellogg & Co., Commemorative Restrike PR DCAM
Worth: $10,546 – $11,046
1855 G$50 Kellogg & Co., Original Dies Restrike PR DCAM
Worth: $35,000 – $45,000
1855 $50 S.S.C.A. Relic Gold Medal "1855 Kellogg & Co. Fifty" Gem Proof PCGS. Housed in commemorative frame wit...
$4,800
1855 $50 Kellogg & Co. Fifty Dollar PR63 NGC. Adams-54, Breen-7921, Kagin-4, High R.6. ...
$444,000
SS Central America Shipwreck: 1855 Kellogg Restrike PCGS Gem Proof (Box and COA)
$4,000
1855 $50 Kellogg & Co. Fifty Dollar PR64 Cameo PCGS. K-4, R.7. ...
$763,750
1855 $50 Kellogg & Co. Fifty Dollar PR53 PCGS. K-4, Breen-7921, High R.6 in proof format; unknown in business strike format....
$352,500
$34,500
SSCA Relic Gold Medal "1855" Kellogg & Co. Fifty Dollar Gem Proof PCGS. ...
$2,760
1855 $50 Kellogg & Co. Fifty Dollar Restrike Gem Proof PCGS. ...
$2,990
1855 $50 Kellogg & Co. Fifty Dollar Restrike Gem Proof PCGS. Struck on August 29, 2001. The proof mintage for that date was ...
$3,450
$460,000
1855 $50 Kellogg & Co. Fifty Dollar Restrike Gem Proof PCGS. ...
$3,738
(1857) California Gold Rush Nuggets Collectors Universe. Ex: S.S. Central America. 0.5 grams....
$115
1855 $50 Kellogg & Co. Fifty Dollar Restrike Gem Proof PCGS. Struck on September 3, 2001, with a proof mintage of that date... (2 items)
$2,530
1855 $50 S.S.C.A. Relic Gold Medal "1855 Kellogg & Co. Fifty" Gem Uncirculated PCGS. Housed in commemorative fr...
$5,280
$5,060
1855 $50 Kellogg & Co. Fifty Dollar PR64 PCGS. K-4, Breen-7921, High R.6. This is a remarkable example with extraordinary g...
$747,500
$110,000
1855 $50 Kellogg & Co. Fifty Dollar Restrike Gem Proof PCGS ...
$2,990
SSCA Relic Gold Medal "1855" Kellogg & Co. Fifty Dollar Gem Proof PCGS. ...
$2,760
1855 $50 Kellogg & Co. Fifty Dollar Restrike Gem Proof PCGS. ...
$2,990
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Events
Knoxville Coin and Currency Show - TN
Location: Rothchild Catering & Conference Center
Saturday, August 1, 2026
