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Three Day GTG Experiment - Coin Three Ends Late, 7-29, REVEALED 67CAM

FlyingAlFlyingAl Posts: 4,373 ✭✭✭✭✭
edited July 29, 2025 11:13AM in U.S. Coin Forum

Good luck, same rules as last time!

I thought it would be interesting to run a sort of experiment here with GTGs. Oftentimes posters will use GTGs to get an idea of if to resubmit a coin, or not to.

Here's my question - how accurate is the forum, grading from images alone? Over the years, I've built up a good chunk of coins with my own images that we can use for this purpose, given the consistent images and vast array of grades/services.

Here's how I plan to do it - one coin a week, after which the grades will be tallied and scored. Each correct answer will be 0 points, 1 point off is 1 point, 2 points off 2 points, etc. Missing designations counts as a point. Essentially, the fewer points at the end of the grade session the better. All coins for the moment will be CAC certified, so as to add another degree of accuracy in the actual grade. I will also choose coins I feel are properly graded.

I will upload the guesses into the below publicly accessible Google Sheet, so you all can view the data for yourselves.
https://docs.google.com/spreadsheets/d/1UYJAbLnHMsDWuv72Rj7AjlTbFLkctDOiw7rHwDq45ZU/edit?gid=0#gid=0

I'll let each coin run for roughly three days.

Coin #3 will end late due to circumstances beyond my control.


Coin Photography

Comments

  • Options
    pcgsregistrycollectorpcgsregistrycollector Posts: 2,304 ✭✭✭✭✭

    67+ CAM

    Proud follower of Christ! I love the USA! Land of the Bright and Beautiful! 🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸

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    johnny9434johnny9434 Posts: 32,361 ✭✭✭✭✭
    edited July 23, 2025 4:37PM

    Ms 67 p.l.

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    FlyingAlFlyingAl Posts: 4,373 ✭✭✭✭✭

    @johnny9434 said:
    Ms 67

    Please check your guess again.

    Coin Photography

  • Options
    MFeldMFeld Posts: 16,635 ✭✭✭✭✭
    edited July 23, 2025 4:13PM

    .

    Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.

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    SanctionIISanctionII Posts: 12,983 ✭✭✭✭✭

    If this coin is graded like some of my proof Franklins it may only be a Brilliant Proof B)

    If some of the streaks shown in the photo of the coin are on the coin my grade guess is PF65CAM. If the streaks are not on the coin and instead are on the holder my grade guess is PF67CAM.

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    seatedlib3991seatedlib3991 Posts: 1,612 ✭✭✭✭✭

    Proof 68 cameo.

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    johnhenry9009johnhenry9009 Posts: 334 ✭✭✭✭

    PF67 DCam

    https://www.coincommunity.com/forum/pop_profile.asp?mode=display&id=102076
    https://www.vamworld.com/forum/memberlist.php?mode=viewprofile&u=2220
    https://boards.ngccoin.com/profile/61076-johnhenry9009/
    https://www.mycollect.com/Jonhherny9009

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    Aspie_RoccoAspie_Rocco Posts: 3,872 ✭✭✭✭✭

    66cam
    So far all my guesses would gold bean with my guessed grade.

    https://www.autismforums.com/media/albums/acrylic-colors-by-rocco.291/

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    FlyingAlFlyingAl Posts: 4,373 ✭✭✭✭✭

    @johnny9434 said:
    Ms 67 cam p.l. 🫣

    Please check your guess again.

    Coin Photography

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    pcgsregistrycollectorpcgsregistrycollector Posts: 2,304 ✭✭✭✭✭

    @MFeld said:

    @pcgsregistrycollector said:
    67+ CAM

    Seeing as how some 1880 quarters display proof-like surfaces and the guess that followed yours was “MS”, is your guess Proof or MS?

    Proof

    Proud follower of Christ! I love the USA! Land of the Bright and Beautiful! 🇺🇸🇺🇸🇺🇸🇺🇸🇺🇸

  • Options
    JeffersonFrogJeffersonFrog Posts: 1,170 ✭✭✭✭✭

    PR67 CAM

    If we were all the same, the world would be an incredibly boring place.

    Tommy

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    MFeldMFeld Posts: 16,635 ✭✭✭✭✭

    I can’t tell what’s on the holder and what’s on the coin. In addition to that, even good images might not show hairlines that are present on many, if not most Proof coins. For example, based on the images provided if I were going to guess - which I’m not - I’d guess Proof 67 Cameo. However, for all we know, the coin could be graded 65 or 66 due to hairlines that aren’t apparent in the images.
    For those reasons, I’m going to sit this one out. And now, I’ll get off of my soap box.😉

    Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.

  • Options
    FlyingAlFlyingAl Posts: 4,373 ✭✭✭✭✭

    @MFeld said:
    I can’t tell what’s on the holder and what’s on the coin. In addition to that, even good images might not show hairlines that are present on many, if not most Proof coins. For example, based on the images provided if I were going to guess - which I’m not - I’d guess Proof 67 Cameo. However, for all we know, the coin could be graded 65 or 66 due to hairlines that aren’t apparent in the images.
    For those reasons, I’m going to sit this one out. And now, I’ll get off of my soap box.😉

    All part of the experiment. :smile:

    Coin Photography

  • Options
    RedRocketRedRocket Posts: 1,520 ✭✭✭✭✭

    I will join the ever growing group of collectors and dealers who are protesting this GTG and will NOT be providing my guess.
    Thanks Mark for the inspiration and for stepping forward in instigating this rebellion.

  • Options
    MFeldMFeld Posts: 16,635 ✭✭✭✭✭

    @OnBendedKnee said:
    I will join the ever growing group of collectors and dealers who are protesting this GTG and will NOT be providing my guess.
    Thanks Mark for the inspiration and for stepping forward in instigating this rebellion.

    😲
    I wasn’t looking for or expecting any partners in protest.
    My personal feelings aside, I realize that such threads can still be fun and even educational.

    Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.

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    thebeavthebeav Posts: 4,103 ✭✭✭✭✭

    pr 66+ cam

    My Ebay Coin Store
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    jfriedm56jfriedm56 Posts: 3,001 ✭✭✭✭✭

    PR66CAM

  • Options
    U1chicagoU1chicago Posts: 6,895 ✭✭✭✭✭

    PR 66 CAM

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    ChrisH821ChrisH821 Posts: 7,100 ✭✭✭✭✭

    67+ CAM was my gut reaction.

    Collector, occasional seller

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    KliaoKliao Posts: 5,784 ✭✭✭✭✭

    PR-67+ CAM

    Collector
    Over 100 Positive BST transactions buying and selling with 57 members and counting!
    instagram.com/klnumismatics

  • Options
    privatecoinprivatecoin Posts: 3,797 ✭✭✭✭✭

    Pr 67 cam

    Paper money eventually returns to its intrinsic value. Zero. Voltaire. Ebay coinbowlllc

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    logger7logger7 Posts: 9,653 ✭✭✭✭✭

    My thoughts same as others on this; PR67 cam cac.

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    RexfordRexford Posts: 1,359 ✭✭✭✭✭

    PR66 DC

    Gobrecht's Engraved Mature Head Large Cent Model
    https://www.instagram.com/rexrarities/?hl=en

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    TrickleChargeTrickleCharge Posts: 406 ✭✭✭✭

    PR66

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    WinLoseWinWinLoseWin Posts: 1,826 ✭✭✭✭✭

    @MFeld said:
    I can’t tell what’s on the holder and what’s on the coin. In addition to that, even good images might not show hairlines that are present on many, if not most Proof coins. For example, based on the images provided if I were going to guess - which I’m not - I’d guess Proof 67 Cameo. However, for all we know, the coin could be graded 65 or 66 due to hairlines that aren’t apparent in the images.
    For those reasons, I’m going to sit this one out. And now, I’ll get off of my soap box.😉

    That has always been the case with many or most or all Guess The Grades, which is often why I can't venture a reasonable guess.

    With this situation having good photos and starting with 3 existing opinions in agreement (the TPG; CAC and the photographer) and mostly because it is an experiment about GTGs from photos, I am more motivated to offer a guess.

    Even at that it is a guess about what the TPG gave it. My opinion of the grade might be different than the TPG if viewed in-person. Sometimes multiple grades could be offered: one each for the TPG grade; the market grade or my grade etc. I have one coin that has four different grade opinions. Two different raw auction appearance grades; a TPG grade; a CAC label that agrees with the TPG grade and then my grade that disagrees from all of them and falls in the middle.

    It has always been an interpretation of photos because we are not able to examine the coin. It will be interesting to see what conclusions FlyingAl eventually draws from the experiment.

    And now, I’ll get off of my soap bar. Oops, think I cracked the holder. ;)

    .
    .

    My guess is Proof 67 Cameo for the TPG grade.

    "To Be Esteemed Be Useful" - 1792 Birch Cent --- "I personally think we developed language because of our deep need to complain." - Lily Tomlin

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    Davidk7Davidk7 Posts: 648 ✭✭✭✭✭

    PR67 CAM

    Collector of Capped Bust Halves, SLQ's, Commems, and random cool stuff! @davidv_numismatics on Instagram

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    seatedlib3991seatedlib3991 Posts: 1,612 ✭✭✭✭✭

    I do have a question if anyone knows. Is it typical to find Longacre doubling on a proof coin? Is it the norm? James

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    rodepetdinosaurrodepetdinosaur Posts: 100 ✭✭✭

    PR 66 CAM

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    pursuitoflibertypursuitofliberty Posts: 7,830 ✭✭✭✭✭

    I see areas that make me question DCAM and others that make me question an Uber Grade.

    Soooooo ... a bit of a WAG it (almost like the tail wagging the dog)

    PF 66+ CAM


    “We are only their care-takers,” he posed, “if we take good care of them, then centuries from now they may still be here … ”

    Todd - BHNC #242
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    CoinbertCoinbert Posts: 730 ✭✭✭✭✭

    Proof 67 Cameo

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    CoinscratchCoinscratch Posts: 10,899 ✭✭✭✭✭
    edited July 25, 2025 10:59AM

    PR65

    Edit: This coin looks familiar not sure if it was one of your previous topics but maybe I should have added CAM or DCAM even though the obverse shield isn't completely filled in.

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    marcmoishmarcmoish Posts: 6,906 ✭✭✭✭✭

    PF67 CAM

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    DrewUDrewU Posts: 207 ✭✭✭✭

    I’m on team Pr-67 Cam

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    gumby1234gumby1234 Posts: 5,901 ✭✭✭✭✭

    As long as the pics arent altered by the OP my guess is PR64 Cam.

    Successful BST with ad4400, Kccoin, lablover, pointfivezero, koynekwest, jwitten, coin22lover, HalfDimeDude, erwindoc, jyzskowsi, COINS MAKE CENTS, AlanSki, BryceM

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    Cougar1978Cougar1978 Posts: 9,756 ✭✭✭✭✭

    PR67 Cameo

    Investor
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    JBNJBN Posts: 1,977 ✭✭✭✭✭

    PR65CAM

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    WalkerfanWalkerfan Posts: 10,282 ✭✭✭✭✭

    Proof 65 cameo

    Sometimes, it’s better to be LUCKY than good. 🍀 🍺👍

    My Full Walker Registry Set (1916-1947):

    https://www.ngccoin.com/registry/competitive-sets/16292/

  • Options
    CoinscratchCoinscratch Posts: 10,899 ✭✭✭✭✭

    Three Day GTG Experiment - Coin Three Ends Late, 7-29

    Wouldn't this be 6 days?

  • Options
    winestevenwinesteven Posts: 5,524 ✭✭✭✭✭

    PR67CAM

    A day without fine wine and working on your coin collection is like a day without sunshine!!!

    My collecting “Pride & Joy” is my PCGS Registry Dansco 7070 Set:
    https://www.pcgs.com/setregistry/type-sets/design-type-sets/complete-dansco-7070-modified-type-set-1796-date/publishedset/213996
  • Options
    FlyingAlFlyingAl Posts: 4,373 ✭✭✭✭✭

    .> @Coinscratch said:

    Three Day GTG Experiment - Coin Three Ends Late, 7-29

    Wouldn't this be 6 days?

    Yes, I was in the mountains with no access to this thread.

    Coin Photography

  • Options
    FlyingAlFlyingAl Posts: 4,373 ✭✭✭✭✭
    edited July 29, 2025 11:13AM

    The reveal! Average grade was a 66+CAM, with a variation of +/- 2 points. Overall very well done.

    Coin Photography

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