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How to tell a real straight clip from damage

seanqseanq Posts: 8,734 ✭✭✭✭✭
Both of these came as part of a recent trade, and are covered in more detail in other posts. Since the clips are so similar in outward appearance, I thought it might be instructive to show the two coins side by side to illustrate the difference between a true Mint error and post-mint damage.

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The first things to notice are the design elements right next to the clip. On the 1912 they are weakly struck or non-existent, especially on the reverse. On the 1931-S the letters of PLURIBUS are strong right up to the edge of the clip, at minimum the tops of the letters should show metal flow down toward the edge. On the obverse, Abe's jacket is weakly struck next to the clip on the 1912, while on the '31-S it is unaffected.

Next look at the rim on either side of the clip (again, the reverse shows better in the scans). Notice the 1912 is not fully formed and tapers slightly toward the clip, while the 1931-S is fully formed right up to the edge. The obverse of the '31-S is actually deceiving because the coin was polished or whizzed, which smoothed the edge of the rim. However, you can see the metal looks like it is flowing in toward the center of the coin instead of out toward the clip. Finally notice the lack of any hint of Blakesley effect opposite the clip on the '31-S. The effect is weak on the '12 even in high grade but it is visible.

Here is another coin from the same group which shows the diagnostics of damage even better than the '31-S:

image

A few more things to notice on this coin - on the reverse the rim looks like it changes planes at K-7, a true straight clip should not suddenly change direction. There is also a hint of further rim damage to the right of the clip at K-6. Finally, while not pictured, the rim of this coin is completely flat with slight striations visible moving perpendicular to the rim, from one face of the coin to the other. A true straight clip should have a slightly beveled or concave rim, with any metal flow lines or striations running parallel along the edge of the coin.

There are a lot of coins in the market that look like the '39-D, and offered as Mint errors. Early on, I had to pull eight or nine coins out of my own set after being taught the lessons above by a more seasoned collector.


Sean Reynolds
Incomplete planchets wanted, especially Lincoln Cents & type coins.

"Keep in mind that most of what passes as numismatic information is no more than tested opinion at best, and marketing blather at worst. However, I try to choose my words carefully, since I know that you guys are always watching." - Joe O'Connor

Comments

  • LALASD4LALASD4 Posts: 3,602 ✭✭✭
    Interesting.
    Coin Collector, Chicken Owner, Licensed Tax Preparer & Insurance Broker/Agent.
    San Diego, CA


    image

  • Who slabbed the 31-S??????
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  • seanqseanq Posts: 8,734 ✭✭✭✭✭


    << <i>Who slabbed the 31-S?????? >>



    ACGS

    I've never heard of them, I started another thread to see if any of the plastic guys had.


    Sean Reynolds
    Incomplete planchets wanted, especially Lincoln Cents & type coins.

    "Keep in mind that most of what passes as numismatic information is no more than tested opinion at best, and marketing blather at worst. However, I try to choose my words carefully, since I know that you guys are always watching." - Joe O'Connor
  • dorkkarldorkkarl Posts: 12,691 ✭✭✭
    excellent info & digi-pics!

    K S
  • mgoodm3mgoodm3 Posts: 17,497 ✭✭✭
    Good info.
    coinimaging.com/my photography articles Check out the new macro lens testing section
  • ShamikaShamika Posts: 18,785 ✭✭✭✭
    Great post Sean!
    Buyer and seller of vintage coin boards!
  • ziggy29ziggy29 Posts: 18,668 ✭✭✭
    Nice post. I saw the pictures, noted the absence of the Blakesley Effect and wondered...
  • itsnotjustmeitsnotjustme Posts: 8,779 ✭✭✭
    Good post.
    Give Blood (Red Bags) & Platelets (Yellow Bags)!
  • seanqseanq Posts: 8,734 ✭✭✭✭✭
    image

    Bumping this thread as a favor for a friend image


    Sean Reynolds
    Incomplete planchets wanted, especially Lincoln Cents & type coins.

    "Keep in mind that most of what passes as numismatic information is no more than tested opinion at best, and marketing blather at worst. However, I try to choose my words carefully, since I know that you guys are always watching." - Joe O'Connor
  • lordmarcovanlordmarcovan Posts: 43,888 ✭✭✭✭✭
    A timely thread, as I just discovered a Seated half dime with an apparent straight clip (which I am assuming to be mere damage until I can get it under a good loupe).

    Explore collections of lordmarcovan on CollecOnline, management, safe-keeping, sharing and valuation solution for art piece and collectibles.
  • JRoccoJRocco Posts: 14,277 ✭✭✭✭✭
    Thanks for sharing your insight Sean. Good post.
    Some coins are just plain "Interesting"
  • sinin1sinin1 Posts: 7,500
    when did they start using the upsetting mill?

    how can you tell on a circulated coin when metal flow is hard to see?


    I have a 1858 flying eagle that I am scratching my head on
  • BECOKABECOKA Posts: 16,961 ✭✭✭
    Very educational.

    Thanks for the post.
  • TwoSides2aCoinTwoSides2aCoin Posts: 44,619 ✭✭✭✭✭


    << <i>Very educational.

    Thanks for the post. >>


    Amen to that !
  • pontiacinfpontiacinf Posts: 8,915 ✭✭
    I do believe I maybe learning some stuff here that may stick, which is a good thing, keep it coming seanimage
    image

    Go BIG or GO HOME. ©Bill
  • Thanks for bumping this thread, it's very good info to know.
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    I was a Monkey
  • drwstr123drwstr123 Posts: 7,049 ✭✭✭✭✭
    Here's another straight clip. Note the granulation of the rim. It should technically be called, "end of planchet". Mike
    image
    image
    image
  • seanqseanq Posts: 8,734 ✭✭✭✭✭


    << <i>when did they start using the upsetting mill?

    how can you tell on a circulated coin when metal flow is hard to see?


    I have a 1858 flying eagle that I am scratching my head on >>



    What a nice surprise to see this thread again. Even more surprising is that I never took down the pics. image

    sinin1: I have seen Blakesley effect on coins dating back to the very early 1800s, so the upsetting process was in place very early. An 1858 Fleagle could show a Blakesley effect but the lack of one isn't a sure sign of a fake. Post a pic of your coin to this thread and I'll see if I can authenticate it for you.


    Sean Reynolds
    Incomplete planchets wanted, especially Lincoln Cents & type coins.

    "Keep in mind that most of what passes as numismatic information is no more than tested opinion at best, and marketing blather at worst. However, I try to choose my words carefully, since I know that you guys are always watching." - Joe O'Connor
  • sinin1sinin1 Posts: 7,500
    here it is


    image

    image

    image

    image
  • Great thread and op.image
  • a039a039 Posts: 1,546
    This one is in my oddball 7070.


    image
  • seanqseanq Posts: 8,734 ✭✭✭✭✭
    Thanks for the pictures, guys. Short answer is, I think they are both real mint errors. a039's 1857 I'm 99.9% sure, because of the wear on sinin1's 1858 I'm more like 90%. I'll try to explain in more detail later today if I get the time how I'm making the determination.


    Sean Reynolds
    Incomplete planchets wanted, especially Lincoln Cents & type coins.

    "Keep in mind that most of what passes as numismatic information is no more than tested opinion at best, and marketing blather at worst. However, I try to choose my words carefully, since I know that you guys are always watching." - Joe O'Connor
  • great thread thanks
  • JRoccoJRocco Posts: 14,277 ✭✭✭✭✭
    Thanks Seanimage
    Some coins are just plain "Interesting"
  • mcheathmcheath Posts: 2,439 ✭✭✭
    Amazing threadimage
  • The 1857 FE appears to show the weakness adjacent to the clip that would indicate metal flow into the void. Opposite of the clip is a weakness at the rim. Blakesley effect?? These features you don't see on the previously pictured 1858 FE cent.

    Great informaiton.

    Garrow

    Edit to add: Looking at the clip from edge-on is probably the best way to determine the authenticity of an incomplete planchet strike.
  • rickoricko Posts: 98,724 ✭✭✭✭✭
    Great information.. thank you.. Cheers, RickO
  • OAKSTAROAKSTAR Posts: 8,226 ✭✭✭✭✭

    Rather then start a new thread, I always search for related thread that can answer my question or add some value the the existing thread. Besides, @seanq is the go-to guy for these.

    I'm in the damage column for this. What do you think?

    Disclaimer: I'm not a dealer, trader, grader, investor or professional numismatist. I'm just a hobbyist. (To protect me but mostly you! 🤣 )

  • yosclimberyosclimber Posts: 5,056 ✭✭✭✭✭

    Damage.
    You can see how GOD is no longer on a circular path.
    It has been distorted into a straight path by the impact (vise?) from the rim.

  • FredWeinbergFredWeinberg Posts: 5,929 ✭✭✭✭✭

    Yes - all damage.

    Retired Collector & Dealer in Major Mint Error Coins & Currency since the 1960's.Co-Author of Whitman's "100 Greatest U.S. Mint Error Coins", and the Error Coin Encyclopedia, Vols., III & IV. Retired Authenticator for Major Mint Errors for PCGS. A 50+ Year PNG Member.A full-time numismatist since 1972, retired in 2022.
  • OAKSTAROAKSTAR Posts: 8,226 ✭✭✭✭✭

    Thank you gents!

    Disclaimer: I'm not a dealer, trader, grader, investor or professional numismatist. I'm just a hobbyist. (To protect me but mostly you! 🤣 )

  • seanqseanq Posts: 8,734 ✭✭✭✭✭

    Just noticed I was tagged in this, and I agree with the others who posted that it is damage and not a straight clip.

    Sean Reynolds

    Incomplete planchets wanted, especially Lincoln Cents & type coins.

    "Keep in mind that most of what passes as numismatic information is no more than tested opinion at best, and marketing blather at worst. However, I try to choose my words carefully, since I know that you guys are always watching." - Joe O'Connor
  • gumby1234gumby1234 Posts: 5,749 ✭✭✭✭✭

    Damaged is as damaged does

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