Bonedigger

I was wondering what the Numismatic Conservation Service (NCS) does that's different from other conservation services, like 'Beautiful Coins Again" here? For what it's worth I never even knew these services existed a year ago. So many things changed in the 20+ years my collecting was dormant so-to-speak.

Thanks
Bone

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A few things to remember, Certification and Attribution are Absolute and Definitive. Grading, on the other hand IS NOT. STRIKE is everything, be it strong or weak.
Capped Bust Half Dollars Identification Reference
[SIGPIC][/SIGPIC]

Charlie32

The NCS guys are supposed to be "professionals." If they do it, it is OK. If anyone else does it, it is wrong.

Charlie

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GDJMSP

To the best of my knowledge nobody knows exactly how or what NCS does to conserve the coins. But in all likelihood it is a dip of some kind.

But there are a great many coins that have been dipped by those individuals with experience and using the right chemical that have also been slabbed by the top grading companies.

The problem with dipping comes in when a person uses too harsh a chemical - or they simply dip it for it too long or too many times - and it strips away the surface of the coin.

As for other cleaning methods besides dipping - without exception they leave traces of damage.

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Bonedigger

Quickly freezing a coin will remove sticky stuff like tar, etc. Pops right off.

Bone

__________________
A few things to remember, Certification and Attribution are Absolute and Definitive. Grading, on the other hand IS NOT. STRIKE is everything, be it strong or weak.
Capped Bust Half Dollars Identification Reference
[SIGPIC][/SIGPIC]