Not an expert on legal matters such as this, but I think they would claim they are "National Coin Graders" and that an abbreviation using initials is out of their control. If I recall seeing the ones on AAN-TV and AAC-TV, the plastic holders spell out full Company name. The Sellers are the ones that emphasize the initials NCG. Although, one of the on-air hosts did refer to featured NCG coin as NGC by mistake during presentation. Oops!
