50 Dollars, United States, 1855

Kellogg & Co. was one of the last private coiners to appear in San Francisco, but its double eagles were well made and well engraved. One of those responsible for the artwork was Ferdinand Gruner, another Central European emigre who may have also been responsible for some of the fractional gold coinage of the decade of the 1850s.
Kellogg & Co. was an offshoot of a larger firm, Moffat & Co. John Glover Kellogg had served as Moffat's cashier, while the other principal, G. F. Richter, had been its assayer.
Perhaps emboldened by public acceptance of their twenty-dollar coins, Kellogg & Co. put plans into motion to produce a fifty-dollar piece. Eleven coins, all proofs, survive to bear testimony to this idea. But no business strikes resulted, even though a competitor, Wass, Molitor & Co., did succeed in circulating such pieces during that same year.
Object Name
date made
Kellogg and Company
Physical Description
gold (overall metal)
0 (overall die axis)
0 (overall die axis measurement)
struck (overall production method)
overall: .2 cm x 4.2 cm; 3/32 in x 1 21/32 in
place made
United States: California
ID Number
catalog number
accession number
Coins, Currency and Medals
See more items in
Armed Forces History: National Numismatic Collection
The Value of Money
Data Source
National Museum of American History, Kenneth E. Behring Center
Credit Line
Estate of Josiah K. Lilly
Publication title
Glossary of Coins and Currency Terms
Publication URL
Additional Media

Visitor Comments

Add a comment about this object

**Please read before submitting the form**

Have a comment or question about this object to share with the community? Please use the form below. Approved comments will appear on this page and may receive a museum response (but we can't promise). Please note that we generally cannot answer questions about your own artifacts or comment on their value, rarity, or collectibility.

Have a question about anything else, or would you prefer a personal response? Please visit our FAQ or contact page.

Personal information will not be shared or result in unsolicited e-mail. See our privacy policy.

Enter the characters shown in the image.