1905-O 10C Micro O (Regular Strike)

Series: Barber Dimes 1892-1916

PCGS MS66+

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Normal O vs Micro O Comparison

PCGS MS65

PCGS #:: 94836

Designer:: Charles E. Barber

Edge:: Reeded

Diameter:: 17.90 millimeters

Weight:: 2.50 grams

Mintage:: 3,400,000

Mint:: New Orleans

Metal:: 90% Silver, 10% Copper

Auction Record:: $12,650 • MS65 • 01-01-2005 • Heritage Auctions

ShowHide Related Coins and Varieties (2)

Major Varieties

1905-O 10C
1905-O 10C Micro O

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Rarity and Survival Estimates Learn More

Grades	Survival Estimate The Survival Estimate represents an average of one or more experts' opinions as to how many examples survive of a particular coin in three categories: 1) all grades, 2) 60 or better, and 3) 65 or better. These estimates are based on a variety of sources, including population reports, auction appearances, and personal knowledge. Survival estimates include coins that are raw, certified by PCGS, and certified by other grading services.	Numismatic Rarity Numismatic Rarity converts the Survival Estimate for a particular coin into a number from 1 to 10 (with decimal increments) based on the PCGS Rarity Scale. The higher the number, the more rare the coin.	Relative Rarity By Type Relative Rarity By Type ranks the rarity of this coin with all other coins of this Type. Lower numbers indicate rarer coins.	Relative Rarity By Series Relative Rarity By Series ranks the rarity of this coin with all other coins of this Series. Lower numbers indicate rarer coins.
All Grades	200	R-7.0	1 / 76	1 / 76
60 or Better	20	R-9.1	1 / 76	1 / 76
65 or Better	5	R-9.7	1 / 76	1 / 76

Survival Estimate
All Grades	200
60 or Better	20
65 or Better	5

Numismatic Rarity
All Grades	R-7.0
60 or Better	R-9.1
65 or Better	R-9.7

Relative Rarity By Type All Specs in this Type
All Grades	1 / 76
60 or Better	1 / 76
65 or Better	1 / 76

Relative Rarity By Series All Specs in this Series
All Grades	1 / 76
60 or Better	1 / 76
65 or Better	1 / 76

Condition Census What Is This?

Pos	Grade	Image	Pedigree and History
1	MS66 PCGS grade
2	MS65 PCGS grade
3	MS63 PCGS grade
3	MS63 PCGS grade
3	MS63 PCGS grade
3	MS63 estimated grade
3	MS63 estimated grade
8	MS62 PCGS grade
8	MS62 estimated grade
10	AU58 estimated grade

#1 MS66 PCGS grade

#2 MS65 PCGS grade

#3 MS63 PCGS grade

#3 MS63 estimated grade

#8 MS62 PCGS grade

#8 MS62 estimated grade

#10 AU58 estimated grade

Ron Guth:

The 1905-O Micro O Barber Dime was created when a die sinker used a mintmark punch intended for a quarter dollar which, ironically, is smaller than that used on the dimes. According to Walter Breen, this variety was discovered by Howard Newcomb circa 1912; yes, that's the same Newcomb who is famous for his reference work on die varieties of 1816-1857 large cents.

This is a relatively scarce variety made all the more popular because it is the only major variety of the series. The finest example is a single PCGS MS66.

Gordon Wrubel: Quickfinder Notes: The Micro O mint mark is only about half the size of the normal New Orleans issue. This is ironic, as numismatic expert Ron Guth points out above, because this undersize fellow was used on Barber quarters! The reason for this use was the very constricted space between the eagle's tail and the R of QUARTER. The Micro O mint mark is ROUND in shape with very thick side walls and an OVAL center. It's position is EQUIDISTANT and AWAY from the ribbon knot and denticles. The normal size mint mark is OVAL in shape with an OBLONG center. It is placed VERY CLOSE to the ribbon knot.