What does Double Die mean?

Discussion in 'Coin Chat' started by AOmonsta, Mar 1, 2011.

  1. AOmonsta

    AOmonsta New Member

    I've noticed while looking in coin books, the term double die appears for some coins. I'm new to coin collecting so I'm not sure what this means. Highly collectible?

    Also post pics if you have them.

  2. Avatar

    Guest User Guest

    to hide this ad.
  3. jallengomez

    jallengomez Cessna 152 Jockey

  4. ikandiggit

    ikandiggit Currency Error Collector

  5. jallengomez

    jallengomez Cessna 152 Jockey

  6. ikandiggit

    ikandiggit Currency Error Collector

  7. proofartoncircs

    proofartoncircs Junior Member

    Actually, I think the term is doublED die. Certain features on the die and any coins struck from it show doubling of the design. This is due to any of several events in the making of the die.
  8. EyeEatWheaties

    EyeEatWheaties Cent Hoarder

    ol abe must have been smokin something cause he started seeing double.

    (Clic on the pic and look at the date and LIBERTY)

  9. AOmonsta

    AOmonsta New Member

    Thanks people. That's a lot of info on them links. Guess I need to go look back through my coins now.
  10. jallengomez

    jallengomez Cessna 152 Jockey

    We'll make a variety collector out of you yet! :D
  11. Hobo

    Hobo Squirrel Hater

    AO. The term is doubleD die, not double die. It means the die has been doubled. The die-making process is somewhat complicated but I will try to keep it simple.

    In years past a hub (with a positive image of the coin) was pressed into a blank die (negative image of the coin) multiple times to make a die. Each pressing of the hub into the die is called a hubbing. In between hubbings the die would be annealed (softened) before the hub was pressed into it again. If the hub and die were not precisely aligned the latest hubbing would create doubling on the die. Every coin struck by the doubleD die will have the doubling and is referred to as a 'doubleD die' coin.

    An example of a doubleD die coin is the 1955 DDO (doubleD die obverse) Lincoln Cent. Check out the photo at http://coins.thefuntimesguide.com/images/blogs/1955-double-die-penny.png . (Yes, the file name incorrectly refers to the coin as a 'double die'.)
  12. AOmonsta

    AOmonsta New Member

    Hey I plan on getting one of every coin ever made, so you better believe I'll be looking for those doubleD dies haha.
  13. desertgem

    desertgem Senior Errer Collecktor Supporter

    Welcome to the forum AOmonstra! You have quite a task ahead of you, but that is the fun of collecting. You will aways feel the "hunger"! Best of luck.


  14. cpm9ball

    cpm9ball CANNOT RE-MEMBER

    Really? Then how about loaning me $500K forever?

  15. AOmonsta

    AOmonsta New Member

    I treat it like a long marathon not a drag race.
  16. EyeEatWheaties

    EyeEatWheaties Cent Hoarder

    thats boring... mortgage the house, sell the kids and hire out the wife. go for broke! it's more fun!
  17. nickelman

    nickelman Coin Hoarder

    That is a good question and as Jallengomez requires a lot to explaination. If you plan to collect varaties please study the subject first there are a lot of people out there selling coins a doubled dies awhich are not! Welcome to CT.
  18. AOmonsta

    AOmonsta New Member

    Thanks everyone. I have another question: How does the error coins like S over D happen?
  19. EvilKidsMeal

    EvilKidsMeal New Member

    That is called a repunched mint mark (RPM), where the new mint mark is literally repunched over the old.
    Explained pretty well here: http://overdate1.3.tripod.com/rpm/
  20. steve4

    steve4 Member

    There can be a RPM (repunched mintmark), where the same mintmark is put into the die 2 or more times one on top of the other. (D/D)
    Also there is a OPM (overpunched mintmark), where one mintmark is punched over a different mintmark. (D/S)
  21. AOmonsta

    AOmonsta New Member

    I'm curious about the OPM, if the coin is struck in San Francisco and supposed to have an S why would the coin get the D initially under it? They have dies with D in San Fran?

    Am I making any sense haha.
Draft saved Draft deleted

Share This Page