1974 Quarter 5.9 Grams...

Discussion in 'Error Coins' started by Wanderingbark116, Apr 28, 2019.

  1. Wanderingbark116

    Wanderingbark116 Active Member

    PhotoEditor-20190428015559.jpg Very bright and shiny. Would could cause this weight discrepancy? Thicker than other quarters from the same year. Top coin in the reverse comparison pic. Leaves are stamped weird. PhotoEditor-20190428012150.jpg

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    Last edited: Apr 28, 2019
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  3. R_rabbit

    R_rabbit Well-Known Member

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  4. Wanderingbark116

    Wanderingbark116 Active Member

    It is my understanding that quarter manufacturing tolerances are ± 0.227 g so it's just outside. I've seen certified errors listed as struck on thick planchet. Wondering if that might be the case.
  5. paddyman98

    paddyman98 Let me burst your bubble! Supporter

    I agree that yours is within weight tolerance.
    Normal is 5.67
    Yours is 5.9
    There is a difference but not much.

    Here is a heavier than normal example from my collection -
    Kasia likes this.
  6. Wanderingbark116

    Wanderingbark116 Active Member

    Jealous! That's so cool!
    paddyman98 likes this.
  7. Jrfinds

    Jrfinds New Member

    What can cause the coin to be bigger size ? Thicker planchet ?so there could be more out there ? Thank you for your time
  8. ZoidMeister

    ZoidMeister Hamlet Squire of Tomfoolery . . . . . Supporter

    I would return the light one and get your money back . . . . . . . wait, what?
  9. paddyman98

    paddyman98 Let me burst your bubble! Supporter

  10. VistaCruiser69

    VistaCruiser69 Well-Known Member

    Is it at all possible that the thicker quarter that you have started out as a proof and at some point was cast out into general circulation? I ask because I've come across two quarters in general circulation which were obvious proofs since they still were in relatively good shape and still had frost on them. I also notice these two that I have come across also seemed to have a thicker appearance compared to other quarters.

    Were proofs made anywhere other than in San Francisco? I don't see a mint mark on yours.

    Below is a picture I took of the 1984 proof that I found. It looks much different compared to regular 1984 quarters, thicker and more square in shape.

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    Last edited: Sep 15, 2020
  11. Conder101

    Conder101 Numismatist

    Not in 1974.

    Thickness at the edge is more a function of striking pressure than anything else. A stronger strike allows for more complete filling of the edge and rim and thus a thicker edge. The two strikings at higher pressure is why the proof coins have such a thick squared off edge even though they start with planchets the same size and weight as the business strikes. That is why trying to judge the "thickness" of a business strike by looking at the edge doesn't really tell you anything. A thin planchet with a strong strike can be thicker than a normal or possibly even a thick planchet with a weaker strike.
  12. Michael K

    Michael K Well-Known Member

    Quarters weigh 5.67 and while 5.9 is a tad heavy, it's not really a big deal,
    since it is still in spec at the upper end of the tolerance range, and who knows how
    precise your scale is. It could be 5.85.
    Paddy's coin is way out of spec, always the more the better with errors.
  13. Conder101

    Conder101 Numismatist

    You can also have the problem that if your scale only one decimal place, the high end tolerance weight for a quarter is 5.897 which would show on a one place scale as 5.9 As Michael says it could be as low as 5.845 and it would show as 5.9
  14. John Burgess

    John Burgess Well-Known Member

    5.67 +/- 0.23 grams for clad washington quarters. 5.9 is at the edge of unacceptable weight, but it's still in tolerance.
    No idea of the last time you calibrated your scale and your graduation on it is 0.1g which isn't ideal to figure out if it's out of tolerance or not, I mean it could be 5.94 or 5.95 with that graduation, even if absolutely certain the scale is calibrated and reading accurately enough, it can be off by half a gram because it rounds to the tenth of a gram one way or the other to display the weight.
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