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How much weight difference is allowed in coins?

Specifically an Eisenhower Dollar.
I have a 1971-s uncirculated 40% silver dollar that weighs 24.0 grams
I have a 1971-s proof 40% silver dollar that weighs 24.7 grams.
They are supposed to weigh 24,59 grams. My scale seems to be accurate due to weighing some copper-nickel eisenhower dollars that all weighed 22.7 grams.

Successful deals with:Ciccio-Nibanny, Wondercoin, Republicaninmass, Utahcoin, Abitofthisabitofthat, Doubleeagles59, Peaceman

Comments

  • HydrantHydrant Posts: 7,773 ✭✭✭✭✭

    Good question.

  • OldhoopsterOldhoopster Posts: 2,930 ✭✭✭✭✭

    Clad dollar = 22.68 gms +/- 0.907 gms
    40% silver clad = 24.59 gms +/- 0.984 gms

    Your 40% dollars fall within the tolerance.

    Member of the ANA since 1982
  • JimnightJimnight Posts: 10,846 ✭✭✭✭✭

    What @Oldhoopster said.

  • PerryHallPerryHall Posts: 46,831 ✭✭✭✭✭

    What @Jimnight said.

    Worry is the interest you pay on a debt you may not owe.
    "Paper money eventually returns to its intrinsic value---zero."----Voltaire
    "Everything you say should be true, but not everything true should be said."----Voltaire

  • MWallaceMWallace Posts: 4,341 ✭✭✭✭✭
  • CryptoCrypto Posts: 3,867 ✭✭✭✭✭
  • shorecollshorecoll Posts: 5,447 ✭✭✭✭✭

    It can vary by coin type and metal. There was more tolerance (I believe) in early copper as opposed to silver or gold.

    ANA-LM, NBS, EAC
  • PerryHallPerryHall Posts: 46,831 ✭✭✭✭✭

    @shorecoll said:
    It can vary by coin type and metal. There was more tolerance (I believe) in early copper as opposed to silver or gold.

    I believe you mean less tolerance. The more valuable the metal, the closer the tolerances.

    Worry is the interest you pay on a debt you may not owe.
    "Paper money eventually returns to its intrinsic value---zero."----Voltaire
    "Everything you say should be true, but not everything true should be said."----Voltaire

  • shorecollshorecoll Posts: 5,447 ✭✭✭✭✭

    I meant more variation, but your point is correct.

    ANA-LM, NBS, EAC
  • Rooster1Rooster1 Posts: 381 ✭✭✭

    @Oldhoopster said:
    Clad dollar = 22.68 gms +/- 0.907 gms
    40% silver clad = 24.59 gms +/- 0.984 gms

    Your 40% dollars fall within the tolerance.

    Thanks for the info. i am surprised at how much tolerance is allowed.

    Successful deals with:Ciccio-Nibanny, Wondercoin, Republicaninmass, Utahcoin, Abitofthisabitofthat, Doubleeagles59, Peaceman

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