hello people,need info on my 1904 morgan silver dollar  it is graded by ncg (numismatic coin gaurantee) ms66 ncg#1238 05604  and a 1923D peace dollar ms66 ncg#1238 05610     i am also a member of NGC  where i have  a NGC Registry, that registry prices my coin at $15k... well i am trying to sell and they told me that the grading company was fake .  does anybody know about ncg ? any info what i should do would be appreciated.. thanks