Removed mint mark? 0

[CBC]

 

This has been offered to me as a 1894-P Morgan dollar. The area between the D and O looks like an “S” mintmark has been removed. Am I correct in being (highly) suspicious?
 

When I questioned this, the seller’s response was “you have no idea what you’re looking at”.

[Morpheus1967]

Having not seen the obverse, you would have to ask yourself why the seller has not submitted it for grading.