Proof Sacagawea $1 Weird Edge

Discussion in 'Error Coins' started by ChristopherCollectsCoin, Sep 24, 2020.

  1. ChristopherCollectsCoin

    ChristopherCollectsCoin Active Member

    I had this proof for a bit now and I've always wondered what these lines are on the edge, there's 3 and the look like die cracks. Yes, I'm sure they aren't scratches.
    Has anyone seen this before? Is this normal for these proofs?

    20200924_172855.jpg 20200924_172832.jpg 20200924_172544.jpg 20200924_172519.jpg 20200924_172415.jpg
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  3. alurid

    alurid Well-Known Member

    Caused by the collar die, which is in three sections and makes the lettering on the edge.
  4. ChristopherCollectsCoin

    ChristopherCollectsCoin Active Member

    I'm assuming that's somewhat common for a business strike, but for a proof?
  5. alurid

    alurid Well-Known Member

    Coins are made the same way but with differently worked dies.
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  6. John Burgess

    John Burgess Well-Known Member

    Business strike "golden" dollar coins are struck in a two step process. the coin is struck with a blank retaining collar in the press, then it is run through the edge lettering machine under pressure and rolled over the edge lettering die, there are no seams on the business strikes. this is done for speed.
    The die looks like this:

    Proof strike "golden" dollar coins are struck with a one step process, the collar in the press has 3 segments, each segment leave a line where they meet.
    I will update if I can find a picture of how this collar die set up looks. I know i've seen it, but can't find it right now.

    the seams on your proof coin are normal for proofs, there is 3 of them from where the the segments meet.
  7. ChristopherCollectsCoin

    ChristopherCollectsCoin Active Member

    Huh, I always thought of them as die cracks. Thank you for the bit of knowledge though. I couldn't find any information on it at all. I only saw one listing on Ebay for a business strike for like 60 bucks with the same thing.
  8. John Burgess

    John Burgess Well-Known Member

    .... the Enhanced Uncirculated 2015-W for instance is struck with the proof method on the 3 segmented collar die with the edge lettering for collectors. probably all enhanced uncirculated "golden" dollars are, but I can't confirm that.

    no idea what you saw on ebay, but I can go looking :)
  9. ChristopherCollectsCoin

    ChristopherCollectsCoin Active Member

    Sorry, it was a proof, but this is what I was talking about.


    But now I know. That will be there for a long while on Ebay.
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