I can only help with the "smoothed" notation. Sometimes older coins are tooled, rubbed, or polished with a variety of materials (steel wool, brushes, mild abrasives, jewelers tools, etc) to even out the coin's surface for better eye appeal. If the grading company isn't sure what method was used to treat the coin's surface, they may add a "smoothed" notation to a details grade.
Never heard of seated- will look forward to learning.
Never heard of seated- will look forward to learning.



















