Archived Articles

These are some of the top recent articles on coin identification, bidding, buying and selling, with tips about common flaws, grading, holdering and more.

  • Counterfeit  Bicentennial Dollar

    Key date coins are a target for counterfeiters with a large profit to be made, but what about common date coins? Well, nothing is safe!

  • 1998-2000 Wide AM Markers

    While new hobbyists typically search for the unicorns–1992/92-D Close AM cents–veteran collectors know that chances are infinitely better looking for the 1998, 1999 and 2000 Wide AM varieties.

  • Filled “S” 1921-S Morgan

    Grease or debris, coupled with die deterioration, causes a filled mintmark, evidenced on many coins, including Morgan dollars. But the “1921-S VAM 6B, Filled S” dollar is special because the mintmark has a flaw in the die as well as a gouge on the obverse.

  • Rare 1965 Transitional Errors

    When the US Mint makes a transition from one type of planchet to another, as we have seen with the popular 1982-D Small Date brass cent, unused planchets are sure to be stuck somewhere in the coinage bins, which is precisely what happened with 1965 dimes and quarters.

  • 15 Transitional Errors. Do You Know Them?

    One of the most accessed Proxiblog articles–thousands, each week–concerns the transitional error 1982-D Small Date bronze cent. But did you know there are 15 famous transitional errors in which the wrong planchet was used during production?

  • Identifying 1944-P/D/S Steel Cents

    1944 steel cents from all three US Mints are extremely rare transitional errors occurring when leftover 1943 zinc-coated steel planchets became stuck in annealing furnaces, tote bins or coining presses. Because of their rarity, however–a few dozen have been actually found and authenticated–there are thousands of counterfeits, altered dates and copies flooding online coin venues.

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