

The Jefferson Nickel was designed by Felix Schlag. It was first
minted in 1938 and was composed of 75% copper and 25%
nickel. In October 1942 the composition was changed to 56%
copper, 35% silver, and 9% manganese to preserve nickel for
World War II. These nickels are nicknamed "war nickels", and
"silver nickels". Both types of nickels were minted in 1942,
and exclusively "war nickels" were minted from 1943 to 1945.
In 1946 following the war the composition was restored to the
original copper/nickel mix, and it remains the same today.
There are two different kinds of Jefferson Nickels minted by
the US Mint; Business Strike Jefferson Nickels and Proof
Jefferson Nickels.
Business Strike Jefferson Nickels are manufactured by the
US Mint for the purpose of enabling commerce. They are
distributed to banks and credit unions nationwide and are
used for spending.
Proof Jefferson Nickels are minted on high quality planchets
and are struck at least twice. These coins typically have a
mirrored background and cameo foreground objects
(devices), for example the bust of Jefferson. Modern Proof
Jefferson Nickels are manufactured in San Francisco and
bear the 's' mint mark. Proof Jefferson Nickels are minted
primarily for collectors.
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