Coin Specifications

Category: Seated Liberty Half Dimes (1837-1873)
Mint: San Francisco
Obverse Designer: James B. Longacre
Reverse Designer: James B. Longacre
Composition: Silver
Fineness: 0.9000
Weight: 1.2400g
ASW: 0.0359oz
Melt Value: $1.00 (5/17/2021)
Diameter: 15.5mm
Edge: Reeded
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1870 S H10C MS obverse 1870 S H10C MS reverse
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Description & Analysis

There is no record of half dime production at the San Francisco Mint, though 6 die pairs were shipped west in December of 1869. No example of this issue was even suspected until the coin illustrated surfaced early in 1978. A specious story was contrived about this coin being found in a dealer's "junk box," but even a Philadelphia specimen in Mint State was worth too much to be so relegated. The reason for masking this coin's true origin has never been revealed, but it has been a prized rarity ever since.

Note that the mintmark is located within the wreath, a position not used previously for coins of this type. Since this location was continued throughout 1871 and into 1872, there is no reason to believe that it was moved solely for the unique 1870 S half dime.

The cornerstone for the second San Francisco Mint structure was laid in 1870, and what was described as a complete set of S-Mint coins of that year was reportedly placed in the building's cornerstone. This receptacle has never been located, at least not by any authority having a legitimate reason to seek it, so it can't be said whether coins still reside within the old structure.

Several denominations of San Francisco Mint coins dated 1870 are rarities, the half dime and three-dollar piece being unique, while the silver dollar is known only to the extent of nine or ten pieces. The quarter dollar remains entirely unknown, though hope exists that an example may one day surface. Clearly, there is more to the story of these rare coins than is presently known.

GRADE SUMMARY

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Price Guide

Last Updated: 5/31/2014

Click on a price to see historical prices, comparison charts and trends.

1870 S H10C MS
  GVGFVFXF505355586061626364656667686970
Base $ - - - - - - - - - - - - 1600000 - - - - - - -

NGC Price and Value Guides Disclaimer

Disclaimer: The prices listed in the various NGC Price and Value Guides are compiled from a number of independent, third party sources in the numismatic community which NGC believes to be reliable. Prices provided are averages, not specific prices for individual coins. Further, because these prices are only updated from time to time, they do not reflect short term pricing trends, which are quite common and are often quite dramatic, given the volatile nature of the collectible coin marketplace. This is especially true for rare coins, where there are fewer sales and greater variations in sale prices. For all of these reasons, the prices in these guides are designed to serve merely as one of many measures and factors that coin buyers and sellers can use in determining coin values. These prices are not intended, and should not be relied upon, to replace the due diligence and — when appropriate — expert consultation that coin buyers and sellers should undertake when entering into a coin transaction. As such, NGC disclaims all warranties, express or implied, with respect to the information contained in the NGC Guides. By using the NGC Guides, the user agrees that neither NGC nor any of its affiliates, shareholders, officers, employees or agents shall have any liability for any loss or damage of any kind, including without limitation any loss arising from reliance on the information contained in the Guides.

Census

 
NGC GRADE SUMMARY

Total Graded: 1
Low Grade: 63
Average Grade: 63
High Grade: 63

The chart showing 63 series.
NGC CENSUS DETAIL Last Updated: 5/11/2021 1870 S H10C MS
 PrAgGVGFVF4045505355586061626364656667686970Total
Base--------------1-------1
-----------------------
-----------------------
-----------------------
Total--------------1-------1
 --------------100%------- 

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NGC Auction Central Disclaimer

NGC Auction Central Disclaimer

Disclaimer: The auction prices realized listed in the NGC Auction Central are compiled from a number of independent, third party sources in the numismatic community which NGC believes to be reliable. The auction data listed by NGC may occasionally contain typographical or input errors that can result in incorrect prices realized appearing on the NGC website. Therefore, the prices realized listed in NGC Auction Central are designed to serve merely as one of many measures and facts that coin buyers and sellers can use in determining coin values. These prices are not intended, and should not be relied upon, to replace the due diligence and – when appropriate – expert consultation that coin buyers and sellers should undertake when entering into a coin transaction. As such, NGC disclaims all warranties, express or implied, with respect to the information contained in the NGC Auction Central. By using the NGC Auction Central, the user agrees that neither NGC nor any of its affiliates, shareholders, officers, employees or agents shall have any liability for any loss or damage of any kind, including without limitation any loss arising from reliance on the information contained in the NGC Auction Central.