Thank you for your frank and full of sense answer.
You have a level of knowledge and expertise that I am not ready to achieve.
I bought this coin from a well-known
auction house (InAs..) who described it as "Ritocchi",
but nowhere did I find that term corresponded to a fully re-engraved item.
I got in touch with the
auction house ... without
success for the moment
thank you for your analysis and your advice
and forgive my very basic english
François