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Week 1926 October – 1 November 2026

The Dime That Isn't Mercury, Coins Struck by Coins, a King's Dollar, and the Buffalo With No Date

The "Mercury" dime that was never Mercury, the mirror-image brockage, Hawaii's own silver dollar, and what to do with a Buffalo nickel whose date wore off.

  1. MondayPost

    The Mercury Dime Isn't Mercury

    Millions of Americans have called it the Mercury dime for more than a century. The coin's designer never meant it to show Mercury at all.

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  2. WednesdayError Education

    Brockages: Why One Side Is Sunk In and Backwards

    This Civil War token reads STAND BY THE FLAG. Turn it over and the same design is there again, but pressed into the metal and backwards. It's a brockage, and it's one of the easiest errors to understand once you've seen a clear one.

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  3. ThursdayNot in the Books

    1919-S Lincoln Cent: A Rim Cud Not in the Books

    A 1919-S Lincoln wheat cent with a rim cud on the reverse, just past 12 o'clock above E PLURIBUS UNUM. Cuds on Coins lists 16 numbered 1919-S rim cuds, and several sit near the top of the coin, but none match this break, so we catalogued it.

    See the listing →
  4. FridayPost

    Hawaii Had Its Own Silver Dollar

    Before it was a state, before it was even a U.S. territory, Hawaii was a kingdom with coins of its own. The best known of them, King Kalākaua's 1883 silver, were designed by the U.S. Mint's chief engraver and struck in San Francisco.

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  5. SaturdayKnown Non-Error

    No Date on Your Buffalo Nickel? Read the Coin Before You Reach for Acid

    A Buffalo nickel with no date isn't an error, and it isn't rare. Millions of them lost their dates in circulation. The good news is that the year is often still there to be read, if you know where to look, and acid is only one way to find it.

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Coins from this week — look one up, then save it