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CONECA (pronounced: CŌ´NECA) is a national numismatic organization devoted to the education of error and variety coin collectors. CONECA focuses on many error and variety specialties, including doubled dies, Repunched mintmarks, multiple errors, clips, double strikes, off-metals and off-centers—just to name a few. In addition to its website, CONECA publishes an educational journal, The Errorscope, which is printed and mailed to members bimonthly. CONECA offers a lending library, examination, listing and attribution services; it holds annual meetings at major conventions (referred to as Errorama) around the country.

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1972 D Quarter

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  • 1972 D Quarter

    Good evening. I just found a 1972 D quarter and the D was completely filled in. Now I imagine this is a fairly common occurance, but with all this various miniscule mintmark errors out there, some being pretty valuable, I thought I'd better check to make sure since I'm new to coin collecting. So, is this a valuable thing? Thanks muchly.

  • #2
    No value attached to a "solid" mintmark. It's due to either a chipped letter punch, a worn letter punch, or die deterioration. As you say, quite common.
    Mike Diamond. Error coin writer and researcher.