How does NGC clean coins?

Applied substances NCS can remove many substances applied to the surfaces of coins to change their appearance, such as putty or lacquer. As with artificial toning, removal may reveal other surface problems, and the coin may still receive an NGC Details grade after conservation.

What does NGC cleaned mean?

It means that the coin is uncirculated (has the details of an uncirculated coin), but has issues that prevent it from receiving a numerical grade, at least in the eyes of that particular TPG. If no explanation was given, it could be cleaned, tooled, damaged, or some other problem, at least in their opinion.

Do coin grading companies clean coins?

Know that this service is not intended to add elements to the coin or hide elements of it, only to preserve the coin back to its original luster as closely as possible. Our experts use a non-abrasive cleaning method and cleaners, designed specifically for PCGS, which will not diminish the coin’s aesthetic value.

How do you tell if a coin has been tooled?

Un-tooled coins often have a slightly convex obverse and slightly concave reverse. 2. Uniform smooth black or brown surfaces. Most often the original patina has been removed and the surface of a tooled coin is darkened bare metal or some other artificial patina.

Does cleaning a coin devalue it?

Cleaning or polishing rare coins devalues them. A good scrubbing can make those coins shine more brightly and look more attractive. If you don’t do it right, though, it can cause irreparable damage. If you’re in doubt, leave the coin alone, or consult a rare coin specialist before you start cleaning the rare coin.

What does NGC mean on coin grading?

Numismatic Guaranty Company
Numismatic Guaranty Company (NGC) is an international coin certification service based in Sarasota, Florida. It has certified more than 50 million coins. NGC certification consists of authentication, grading, attribution, and encapsulation in clear plastic holders.

What does NGC graded mean?

NGC Grading is a system used to score and certificate the quality of bullion coins. NGC is one of the largest and most respected grading companies. Graded coins are prized for the accuracy, consistency and integrity of certification.

Does PCGS clean coins before grading?

PCGS Restoration will remove contaminants that are determined to have been deliberately and artificially applied, including putty, grease and other substances used by “coin doctors.” Restoration also will remove contaminants on the coin’s surface caused by improper care or storage, such as polyvinyl chloride (PVC) or …

What does tooled mean in coin grading?

Graffiti – a deliberate engraving or punching of letters, numbers or simply random designs into the coin. Surfaces tooled – major metal movement such as re-engraving, lasering, tooling.