Looking For Help Identifying & Valuing This French Medallion

Hello and welcome.

Here is where collecting ancient coins has some positive overflow into other areas of numismatics. Because I can recognize the Latin titles around the building are the ancient Roman titles of the triumvirs who were responsible for running the Mint under the Republic; it translates to "gold, silver and bronze casting and striking"; the initials "AAAFF" appear on many early Roman coins as a result.

So it is logical to conclude that it is a mint medal. The Wikipedia article on the Paris mint shows exactly the same building, known as the "Hôtel des Monnaies".

The date, "1770", is the year the current mint organization was founded. It does not date the medal. Nor is the portrait necessarily useful, since it could have been struck long after the king died. The PAris MInt has a long history of re-striking old medals to order, and they still use this mint-building die, as evidenced by this mint souvenir medal being sold on Delcampe.