"Key date" coins and ultra rare
coins have in the past been excellent
investments. A "key date" coin is generally
considered to be the most important coin in a
series, usually the lowest mintage and/or most
expensive.
Rarity is simply the number of
specimens extant of any particular item.
Key Dates
and Rarities Index (3
Years). Represents a 53%
return over this three-year
period.*
 Source: Professional Coin
Grading Service
A few famous examples of
how rare coins can increase in
value.*
1804 “Draped Bust”
Dollar: the French Family specimen 1989
auction
appearance
$242,000 2003 auction
appearance
$1,207,500
1870-S “Seated Liberty” Half
Dime First appeared at public auction in
1980 for $425,000 Appeared at auction in
1985, realized $176,000 Sold at auction in
1986 for $253,000 Sold at auction in 2000 for
$529,000
1885 Trade Dollar: the
Worrell/Rudolph specimen 1993 auction
appearance realized $242,000 2003 auction
appearance realized $920,000
1913 “Liberty” Nickel: the
Louis Eliasberg specimen Sold at public
auction in 1996 for $1,485,000 Sold privately
1/2004 for $3,000,000
*Past returns not
indicative of future results.
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