Results 1 to 4 of 4

Thread: 2007 D Satin finish with non satin profile

  1. Post 2007 D Satin finish with non satin profile

    Another mint set find of a 2007 D 10c that is satin finish (as is the entire set) but Roosevelt's profile is not. There are traces of finish around the outside edges, but the rest is satin free. Would this be a weak strike or something else to cause this to happen?

    SAM_0853.jpgSAM_0854.jpg

  2. Default

    Most of the time, with proof sets, it is not a given that all coins will have that frosty pristine cameo look. Typically a proof set die is good for somewhere around 3000 coins before it is replaced.

    The cameo effect can only last so long. The new dies begin hammering planchets into coins, and eventually the cameo appearance wears off, its part of the normal process of striking coins, dies wear down.
    It is hard to say how many coins actually come out cameo before it starts to degrade. I personally have articles that say its the first hundred or so coins from a new die, or a properly cleaned die and put back in service that will give you a cameo appearance. I also believe the amount of pressure that strikes the coin and how well the planchets have been prepared that can add in to the life of a cameo finish.

    The mint pays more attention to the quality of proof coins than to regular business strike (MS coins - pocket change).
    Normal everyday coin dies can strike hundreds of thousands of coins - or more before the design is worn so bad that it has to be replaced.

    If you go to a grading service online and look at any modern coin, they should list Deep Cameo, Cameo and another list just as proof. The proof listing does not have much cameo, if any at all.

    A coin not having a cameo finish is not an error per se, its just the normal wear process of proof struck coin.
    Gary Kozera
    CONECA State Representative for Virginia
    Website: http://www.minterrors.org
    Forums:http://minterrors.org/index.php?/forums/
    Auction House: http://auctions.minterrors.org
    Store: http://minterrors.org/index.php?/store/

  3. Default

    This is not a proof coin we're looking at but a mint one (Denver in this case) done in a satin finish. Obverse and reverse both in satin finish, but the profile of Roosevelt's bust is almost satin free giving it a polished look instead of the burnished look as the rest of the coin. So unless the scenario about the proof dies carries over to the business side for this type of finish, I don't think we're on the same page?

  4. Default

    when it comes to dies, the same cameo appearance can show up on business strike coins as well. The first 100 or so coins struck by a new, or recently polished die can show a satin or cameo appearance. Proof coins do have a more rigid QA process and sometimes the mint has been known to re-frost proof dies to get the cameo appearance back onto the coin itself. One of the coins that this practice was confirmed on was the proof IKE dollars.

    Sometimes a die in general becomes clogged with metal shaving and grease which can also impair the coin from having that frosty white cameo appearance. Or, simply the business strike or proof die wears down and the cameo appearance fades after a 100+ coins being struck.

    Cameo coins on a business strike (ms) are a little more rare than cameo on a proof coin.

    Can coins exhibit signs of a weak strike? Sure ! The weak strike doesn't hold any additional value, unless the weak strike is tied to some significant error like the 1922 no D Lincoln Cent.

    Sorry for the confusion. Earlier today I had a small opportunity to provide some comments, but as I stated above, Cameo can happen on MS or Proof strikes.
    Last edited by MintErrors; 03-01-2017 at 09:26 PM.
    Gary Kozera
    CONECA State Representative for Virginia
    Website: http://www.minterrors.org
    Forums:http://minterrors.org/index.php?/forums/
    Auction House: http://auctions.minterrors.org
    Store: http://minterrors.org/index.php?/store/

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •