17738Re: Unusually strong upset produces distinctive weak strike
- Jul 1, 2007--- In email@example.com, "Jeff"
> Interestingly, I have some quarters dated in the 1990's that do and
> not have this fading of the letters. In particular, two 1998 datedThe extent of fadeout and letter truncation varies even within the
> off center quarters, one with this fading of peripheral letters and
> one without.
same year. Contributing factors would include minimum die clearance
and, perhaps, extent of off-centeredness. It seems to me that
fadeout is less pronounced in way off-center strikes, perhaps due to
the increased effective striking pressure on the smaller area that is
exposed to the strike.
> Since the state quarters introduced both a new obverse design, andan
> ever changing reverse design, it would seem the dies underwent somesince
> definite changes. For instance, I've not encountered a single
> off-centered state quarter that shows this fading of the letters
> the state quarters began, (perhaps there could be a few outthere). I
> would think then, that this suggests convexity changes, just as youI also haven't seen an off-center state quarter with fadeout.
> have said.
> I've encountered state quarters fully struck, but with theperipheral
> letters having no relief (from the mint bag). They appear flat as aThat would reflect a slightly weak strike, probably from excessive
minimum die clearance.
> I've not seen this on recent state quarters, but New JerseyThis effect is often seen on Delaware quarters, too.
> and Connecticut peripheral letters were very flat, sometimes on the
> obverse, sometimes to a greater degree on the reverse.
> Often, otherperipheral
> tell-tall signs of a wearing die, cracks, chips, double die
> deterioration, (just to name a few), accompanied these flat
> letters, but not always in the same location. (These may be goodSigns of die deterioration and brittle fracture are common. I don't
> examples of the die surface flattening as they continue to exceed
> normal service life).
think they have any connection to the weakly struck peripheral
letters. Since the die face is almost flat when installed, it would
probably be impossible to detect further flattening. That's why I'm
looking at earlier years with marked die convexity.
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