Peter wrote:
On Mar 29, 9:39 pm, "Mr. Jaggers" lugburzman[at]yahoo[dot]com wrote:
Michael Benveniste wrote:
This wasn't exactly a shining moment for me in coin photography. In
fact, I was blowing off a couple of shots of film using a very odd
combination of equipment. (Nikon F100, Ektar 100, a Pentax(!) 120mm
f/4 Macro, and a pair of supposedly daylight balanced fluorescents).
As a result, the color balance of these shots is a bit off:

http://wemightneedthat.biz/Coins/1853obv.jpg
http://wemightneedthat.biz/Coins/1853rev.jpg

That said, what about those spots on the back of this half-cent?
On the coin, they appear to just be dark spots, but on this
particularly shot, they look an awful lot like PVC. The coin is
currently housed in an old green label PCGS holder.

What says the jury?

That type of corrosion can be caused by a number of things, PVC
included. I'd rather say that if it were PVC damage, it would be
more evenly spread over the surface, and on both sides. Does the
coin appear greasy or slimy? That's a dead giveaway for PVC damage,
but PCGS certainly would have known that refused to slab it.

Possibly someone sneezed or sputtered on the coin before it was
slabbed, and it took a while for the damage to appear. Regardless,
it's sad for a nice coin like that to suffer.

James- Hide quoted text -

- Show quoted text -

Does PCGS offer any guarantee for copper (or brass) coins? If they
do, I would be inclined to get whatever benefit they offer ASAP.

Here is the text from the PCGS website:

"Because the color and surfaces of copper coins can change due to
environmental factors, PCGS does not guarantee the color of copper coins, or
the absence of copper spotting, for any PCGS graded copper coin graded or
sold after January 1, 2010."

James