Run of 1998 Error Eagles found at MSNS show

Run of 1998 Error Eagles found at MSNS show

Post by KPotter2 » Tue, 01 Dec 1998 04:00:00



Run of 1998 Error Eagles found at MSNS show
by Ken Potter
November 30, 1998

        A seven coin progression of  "Strike-Thru" errors on 1998 U.S. silver Eagles
was found in an original government issued roll during the Nov. 27 - 29
Michigan State Numismatic Society Fall Convention.  They were reported by
Michigan dealer Gary Kelly who specializes in U.S. coins including
error-variety coinage.  Six of the coins exhibit an obvious irregular
depression in the field immediately to the right of the Eagle's left wing
(viewer's right); the final coin displays the imbedded material still retained
and struck into that area.
        The "Strike Thru" error occurs whenever foreign material falls within the dies
or hitchhikes it way into the dies via an incoming planchet and is then struck
into the coin.  Foreign material in the form of fragments from damaged
planchets, chipped dies (or other tooling), grease and other debris frequently
works it's way into the dies of all coining operations but is normally detected
on the Silver Eagle coins which are placed into tubes by hand.  The material is
either immediately struck and retained in a coin or it adheres itself to the
upper or lower die (or both).  When the material sticks to a die it continues
to strike a series of coins that are often referred to as a "progression" as
each strike normally causes some changes to occur to the foreign material and
thus the resulting area of the "strike-thru".
        Kelly's progression is struck through a light chalk-colored matter that
appears to be a hard plastic-like substance with a few flecks of gold within.
It's an interesting "progression" that's easily assembled from the earliest to
the final strike.  An examination of the coins illustrates the foreign material
slowly shifting from the below the tail of the ribbon and slightly overlapping
into the Eagle's left wing feathers, over to the northeast where it begins to
encroach into the ribbon and breaks up slightly at its left edge, resulting in
a slight gap of field-area between the Eagle and struck-thru area.  Scans of
the series may be obtained via email by requesting "Scan#1998EagleErrs" typed
in the subject box and directed to my email address below.  Higher quality
scans from actual 35 mm photos will be available shortly.
        I'll be handling the sale of this progression and would like to see it left
intact as a set.  It is being offered at $175.00 plus $2 postage.  I may be
contacted at: P.O. Box 760232, Lathrup Village MI 48076 or via email at

Ken Potter Box760232 Lathrup Vlg MI 48076 (313)255-8907.Numismatist Since1959
Serving Collectors Since1973. Variety Coin Register Exam/Listing Service?.
CONECA,SDDCA, LCS, ANA,NLG,MSNS,NWDCC. http://www.uscents.com/potter/