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Posted 01/28/2019 9:28 pm
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I believe if a coin is dipped properly, I won't even know it was dipped, but once luster is removed via dipping too long one time or being dipped several times over a coin's life, then it's in the "overdipped" category and it would seem an MS coin wear-wise should no longer be eligible for MS status via TPGs without that intact/remaining luster.
I believe if a coin is dipped properly, I won't even know it was dipped, but once luster is removed via dipping too long one time or being dipped several times over a coin's life, then it's in the "overdipped" category and it would seem an MS coin wear-wise should no longer be eligible for MS status via TPGs without that intact/remaining luster.
You are spot on, properly done/well done ones you would never know.
As far as all luster stripped, a coin can still be MS that way but practically speaking at least for PCGS you are right they would likely ding it down to AU
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Dipping coins, in general, is a very shortsighted practice. It can only be done a limited number of times (maybe even just once or twice) before a coin is irretrievably ruined, and the fresh unpassivated surface it exposes re-tones so quickly a subsequent and destructive dip is needed before long (unless you airtite or lacquer the coin).
Dipping coins, in general, is a very shortsighted practice. It can only be done a limited number of times (maybe even just once or twice) before a coin is irretrievably ruined, and the fresh unpassivated surface it exposes re-tones so quickly a subsequent and destructive dip is needed before long (unless you airtite or lacquer the coin).
That's really not true. Will some retone yes, will some even retone fairly quickly yes, but by no means will they all do that and plenty were dipped decades ago and are still looking great.
There's nothing shortsighted about it. Some coins flat out need to be dipped for conservation, others would be pariahs without it. It's been going on for decades and decades and decades, this isn't a new practice and actually people are more cautious with it now than they were 40 years ago.
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Also, does anyone know why dipping seems to be so popular but a presumably milder approach may not be widely employed?
Also, does anyone know why dipping seems to be so popular but a presumably milder approach may not be widely employed?
There's plenty of them, there's even safer types of dip and using various strengths of it, proprietary chemicals and methods and so on. A lot of the other methods can be confused with dipping
The thing is though you'll never get more than basic information when it comes to conservation and that is one of the reasons why it is so misunderstood. Some people aren't allowed to talk about it from confidentiality agreements, others have figured out how to make the coins look great again and don't want to give away their secrets so that others can make money off of what they figured out.
Aside from basic things or getting a job at a TPG conserving coins most of it will have to be learned through trial and error on low value stuff.
