| Mint Marks are tiny letters referring to
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| | approximately the dimension of the "done"
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| the locality where the minting of coins
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| | coin.
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| took place. The position of mint mark can
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| | 3. The blanks then are softened by
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| be found typically on the back side of
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| | running them through an annealing
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| coins that were minted before the year
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| | furnace, through tumbling barrels, and
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| 1965 and on the front after the year
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| | then through revolving cylinders
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| 1967.
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| | containing chemical mixtures to burnish
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| Coins of every US mint branch are
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| | and clean the metal.
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| recognized by mint marks. These coin
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| | 4. The blanks then are washed and placed
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| marks date back to ancient times in Rome
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| | into a drying device, then into the
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| and Greece.
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| | "upsetting" machines, that produce the
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| The "Director of the Mint", through the
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| | raised rim.
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| "Act of March 3, 1835", set rules to
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| | 5. The Final stage: "coining press".
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| classify and distinguish the coins
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| | Each blank is clasp into position by a
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| released from every US Mint branch. This
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| | collar or ring as it is being struck or
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| core management set accurate standards
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| | hit under great pressure. Pennies need
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| and pattern of production as well as
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| | approximately40 tons of pressure and the
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| responsible coinage.
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| | larger coins need more. The "upper and
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| Coins that minted at the "Philadelphia
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| | lower dies" are stamped simultaneously on
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| mint" earlier than the year 1979 have no
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| | the two sides of each coin.
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| mint marks. So it was in that year that
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| | The design:
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| the dollar was marked with the letter P
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| | The "Director of the Mint" chooses the
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| and other denominations had that same
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| | design and pattern for United States
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| mark thereafter.
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| | coins, then that is approved by the
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| All dies for US coins are produced at the
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| | "Secretary of the Treasury"; congress can
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| "Philadelphia Mint" and prior to shipping
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| | recommend and suggest a design. The
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| the coins to their mint branch, coins are
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| | design then can not be changed for twenty
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| marked first with the correct and
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| | five years unless directed by the
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| designated mint markings. The precise
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| | congress.
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| size and positioning of the coins' mint
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| | All emblems of United States coins minted
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| mark can slightly vary; this is
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| | currently represent previous presidents
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| influenced by how deep the punch was
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| | of the United States. President Lincoln
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| impressed and where.
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| | is on the one-cent coin, adopted in the
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| The importance of mint marks:
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| | year1909; Washington on the 25 cent coin
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| Collectors can determine the value of a
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| | that was minted first in 1932; Jefferson
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| coin though mint mark, date and condition
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| | on the five cent coin in 1938; Franklin
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| examination, making the coins condition
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| | Roosevelt on the dime, introduced in the
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| the most significant factor and standard
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| | year1946; Kennedy on the half dollar that
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| when determining its value.
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| | was first minted in 1964.
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| Defining the Mint which hit the coin is
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| | The "Act of 1997" known as the "50 States
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| tremendously important in determining the
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| | Quarters Program" supports and allows the
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| value of the coin; the coin can be hit in
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| | redesigning of the quarters - the reverse
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| huge quantities at a single Mint or in
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| | side is to show each of the fifty states
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| smaller quantities in another hit.
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| | emblems. Every year starting in 1999 and
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| The process of minting:
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| | until 2008, coins honoring five states,
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| 1. The making of metal strips in the
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| | having designs that are created by each
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| correct thickness: Zinc strips are used
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| | state, will be issued in the sequence or
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| for pennies, alloy strips composed of
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| | manner in which each state signed the
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| nickel (25%) and nickel (75%) for nickel
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| | Constitution.
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| and dollars, half-dollars, dimes,
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| | The phrase "In God We Trust" was used
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| half-dimes are fabricated from a fusion
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| | first in 1864, on a United States
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| of three coatings of metals; the external
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| | two-cent coin. It then was seen on the
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| layer are alloys and the center is
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| | quarter, nickel, half-dollar, silver
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| copper.
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| | dollar and on the $10, $5 and $20 in
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| 2. These strips of metals are then put
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| | 1866; in 1909 on the penny, in 1916 on
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| into "blanking presses" that are
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| | the dime. Today, all United States coins
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| responsible for cutting "round blanks",
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| | carry the motto.
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