However it is common practice with Numismatic Clubs to abbreviate their name. I belong to GNSA (Garden State Numismatic Association), NENA (New England Numismatic Association, NASC (Numismatic Association of Southern California), ANA (American Numismatic Association), OCCC (Ocean County Coin Club), GENA (Great Eastern Numismatic Association), TAMS (Token & Medal Society), former member of BHNC (Bust Half Nut Club), FUN (Florida United Numismatists), etc.

*Sometimes the Editors of numismatic publications will use the abbreviations in an article if the full name of the club already appears in the article. But your suggestion is a good one.