I really do object to these sorts of verbal shenanigans. "Official" has a meaning:
Quote:
official, adjective
1. relating to an authority or public body and its activities and responsibilities;
2. having the approval or authorization of an authority or public body;
3. employed by an authority or public body in a position of authority.
You'll see the core of each subdefinition of "official" is the phrase "authority or public body". There are "authorities" for coin
issuing but there is no such "authority" for coin
collecting. There is no US Government Department of Numismatics, no United Nations Secretariat of Collectables that would have the "authority" to declare a coin catalogue to be "official". There are numismatic associations such as the
ANA, but they have very loose controls over the terminology and are in no position to grant "officialness" to anything numismatic, since no-one is forced or heavily obliged to become an
ANA member if they want to be a coin collector.
Yet the advertising industry in America seems to have turned it into yet another meaningless weasel-word you can slap onto your product in the hope that it sells more stuff. I can only assume that there was some law case years ago that ruled that, in the absence of an actual government authority or professional organization on a subject, anyone had the right to declare themselves an authority and call themselves "official".
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis