This coin is a SUPER CD Morgan Silver Dollar 1882 O VAM 29A variety.
The variety shows an incuse G from God on the reverse next to Liberty neck. There are also die cracks on the reverse that run through ONE DOLLAR and up through the O mint mark.
What is a SUPER CD (Clashed Die)?
The SUPER CD collection is a set of 25 highly collectible clashed die varieties identified in the 2005 book Elite Clashed Morgan Dollars by Dr. Mark Kimpton. This is a listing of the most extraordinary clashed varieties know to exist that are not part of the TOP 100 or the HOT 50 listing. The SUPER CD collection VAMs are extremely rare and are poised to be a great investment for your coin collection.