I wouldn’t have thought that something that was nominally added to the estate of a deceased person post-mortem would attract the kind of duty you suggest – although I could be wrong! I don’t even know if it can legally be added to that estate, either. We don’t know the intricacies/legalities of how this VC was “added” to the Chris John Collection but I would strongly suspect that anyone making such an investment would take steps to ensure that said investment was protected from the ever grasping taxman!
Was thinking more of Mr Reid’s estate.
I used to know someone who was a near neighbour of Mr Reid, always spoke highly of him.