Professional Conservation &
Details Grading for “No Grades”
Some of the No Grade designations described in this
booklet are of a nature that no corrective measure
can be taken that will allow the coin to be certified as
a non-“problem coin.”
With proper professional conservation,
however, some types of “no grades” or “problem coins” can
reach a state that would allow for certification. Some examples
of the No Grade designations that can often be corrected
with professional conservation are PVC, Artificial Toning, Dip
Residue, Glue Residue, Residue, as well as a few others.
It is imperative that any attempt at coin conservation be
performed by an experienced professional ONLY.
As we’ve
described in these pages, amateur or even inexpert conservation often causes greater damage. Many hundreds of thousands of pristine and desirable coins have been damaged when
an expert’s touch would have both resolved any problems and
protected the coin’s collectible value.
In cases when a detrimental surface condition cannot be
remedied by professional conservation and made suitable for
non-“problem coin” certification, the coin may still be suitable
for certification as a problem coin by a company that specializes in such types of material. Problem coin grading, consisting
of a details grade and description of the problem, is available
through NCS, an affiliate of NGC.
To learn more about professional conservation or the certification of “problem coins,” we encourage you to consult
Numismatic Conservation Services, LLC (NCS) for a recommendation on how to have your coins properly conserved or
graded. Please see the NCS contact information on the last
page.
