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The Nucoins Coin Library

Understand the type before evaluating the coin.

History, design, nominal specifications, major type changes, and practical examination notes for the coin families represented in the Nucoins catalogue.

Start with context

Know the series, design, and production history before comparing individual issues.

Separate the variables

Metal content, date, mint, variety, grade, and surface quality answer different questions.

Return to the coin

Use the guide for context, then evaluate the photographs and recorded facts of the exact piece.

Classic U.S. gold

Gold coin type guides

From the long-running Liberty Head denominations to Saint-Gaudens' redesign of the double eagle.

$20 · Gold · 1850–1907 circulation issues; 1849 pattern

Liberty Head Double Eagle

01

America's first twenty-dollar gold denomination, created during the California Gold Rush and produced through the transformation of the national economy in the nineteenth century.

Designer · James B. Longacre33.436 g
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$10 · Gold · 1838–1907

Liberty Head Eagle

02

A long-running ten-dollar gold series whose dates and mint marks trace changing centers of American gold production from the 1830s through the early twentieth century.

Designer · Christian Gobrecht16.718 g
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$5 · Gold · 1839–1908

Liberty Head Half Eagle

03

A five-dollar gold series struck at more United States mint facilities than any other classic gold denomination, offering a compact map of regional gold coinage.

Designer · Christian Gobrecht8.359 g
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$2.50 · Gold · 1840–1907

Liberty Head Quarter Eagle

04

The smallest Liberty Head gold denomination and one of the longest-lived largely unchanged designs in United States coinage.

Designer · Christian Gobrecht4.180 g
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$20 · Gold · 1907–1933

Saint-Gaudens Double Eagle

05

The result of Theodore Roosevelt's campaign to elevate American coinage, combining monumental sculpture with a twenty-dollar gold denomination.

Designer · Augustus Saint-Gaudens33.436 g
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Classic U.S. silver

Silver dollar type guides

The Morgan and Peace dollars, examined through their legislation, design, mint history, and surfaces.

$1 · Silver · 1878–1904 and 1921

Morgan Silver Dollar

01

A large silver dollar shaped by western silver production, federal monetary policy, mass storage, melting, and one of the broadest collector followings in United States numismatics.

Designer · George T. Morgan26.73 g
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$1 · Silver · 1921–1928 and 1934–1935

Peace Silver Dollar

02

A silver dollar created after World War I, pairing a radiant Liberty with an eagle at rest above the word PEACE.

Designer · Anthony de Francisci26.73 g
Read the guide