What causes water spots on modern business strike coins?
llafoe
Posts: 7,220 ✭✭
They look like those spots that are left behind after you rinse your glasses made in China that you bought from Wal-Mart (or those spots left behind after Longacres' staff cleans his leaded crystal).
I have 8 MS68 coins that have these spots... would PCGS review them under a spot review? Would they be something that they would dip to remove the spots and then reholder the coins?
I can't imagine a "rinse" spot would be acceptable on a MS68 coin?
I have 8 MS68 coins that have these spots... would PCGS review them under a spot review? Would they be something that they would dip to remove the spots and then reholder the coins?
I can't imagine a "rinse" spot would be acceptable on a MS68 coin?
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<< <i>OK playing
Then we would get into a technical grade vs. market grade (eye appeal) discussion.
Would a MS68 with spots sell for the same as a MS68 without spots?
No. Cheers, RickO
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<< <i>No their is nothing to get rid of those milk spots!!! >>
Are they milk spots? I thought the milk spots were only on the ASEs? Do they rinse the regular circulating business strike coins too?
<< <i>They look like those spots that are left behind after you rinse your glasses made in China that you bought from Wal-Mart (or those spots left behind after Longacres' staff cleans his leaded crystal).
I have 8 MS68 coins that have these spots... would PCGS review them under a spot review? Would they be something that they would dip to remove the spots and then reholder the coins?
I can't imagine a "rinse" spot would be acceptable on a MS68 coin? >>
...i think PCGS would downgrade the coins because of the spots and give you the money difference as part of
their guarantee.
little explanation.
<< <i>What causes water spots on modern business strike coins? >>
Is this like who is buried in Grant's tomb?
<< <i>
<< <i>What causes water spots on modern business strike coins? >>
Is this like who is buried in Grant's tomb? >>
I don't understand... water spots are buried in Grant's tomb?
I was wondering if it was caused cleaning the planchets... if they even do that for business strikes. If it was caused cleaning the coins after going through the presses... if they even do that for business strikes. If it was caused post mint by a collector/dealer... using MS70 or some other product, etc.
<< <i>No help from an acetone rinse? >>
Why would you expect any remedy from acetone, especially AFTER the spots become visible? At least in the case of silver eagles [and presumably related mint issued commemorative coins] the spots are due to chlorine which over time manifests itself as the visible and generally irreversible formation of silver chloride. I can't speak to the issue of business strikes as I have no direct experience with them and thus don't know if the spots arise from the same rinse process as the ASEs or as deposits from hard water.
The missing piece/s of the puzzle could probably be found if one had access to the mint's manufacturing process or that of their blank planchet supplier. I can't believe that it is some highly guarded proprietary secret, but perhaps maybe it is.
At this time the best approach is to submit coins on your own and dip them in eZest [NOT ACETONE] before you submit them.