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US Coins > The Modern Minting Process > Flashcards

The Modern Minting Process Flashcards

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1
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3
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4
Q

Blanks

A

Punched blanks from sheets of metal

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5
Q

Annealing and Wash

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Blanks are sent to the annealing furnace washed and cooled

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6
Q

Upsetting

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7
Q

Die Making

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8
Q

Galvano

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9
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Janvier transfer

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10
Q

Who designed Janvier transfer?

A

Frenchman, Victor Janvier

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11
Q

Master hub

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12
Q

After the master die is produced, it is placed into the hubbing press to create what?

A

Working Hub-master die create several working hubs

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13
Q

What Mint made all the dies until 1996?

A

Philadelphia Mint

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14
Q

After 1996 what did Denver and San Francisco facility start doing?

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15
Q

What are the three stages of die preparation?

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16
Q

Hubbing Process

A
17
Q

All mintmarks were hand-punched on individual dies until?

A

1985

18
Q

In 1985, mintmarks were, added to what, for all proof coins?

A

master die and following to the original plaster sculpture.

19
Q

In 1990 the mintmarks were added to the master die stage for what coins?

A

Cent and Nickel

20
Q

In 1991 the mintmarks were added to the master die stage for what coins?

A

Dime, Quarter, and Half Dollar

21
Q

In 2000 mintmarks were part of what process?

A

Galvano

22
Q

In the die making process what design is in relifef, or positive, just as it appears on the finished coin.

A

The plaster model, galvano, master hubs and working hubs

23
Q

In the die making process what bears an icuse or negative design?

A

Master dies and working dies

24
Q

What four thing does the coin chamber have?

A

Anvil die, Hammer die, collar and feeder fingers

25
Q

What is the Anvil die?

A

Lower die

26
Q

Anvil die only moves when?

A

When the coin is ejected

27
Q

What is the Hammer die

A

Upper die

28
Q

Anvil die is usually what side of the coin?

A

Reverse

29
Q

Hammer die is usually what side of the coin?

A

Obverse

30
Q

What is a ring that retains the planchet metal during strike?

A

Collar

31
Q

The collar also serves as a third die creating what?

A

Reeding and sometimes lettering on the edge

32
Q

Feeder Finger

A
33
Q

Striking process

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34
Q

After minted, what do the coin pass through to catch misshaped coins?

A

riddler

35
Q

How many strikes per minute are the machines capable now and in the past?

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36
Q

How many dies can there be in a press?

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37
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38
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39
Q

Modern minting process

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US Coins (6 decks)

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