For good reason "Parker" was a very popular Belgian knock-off name on guns intended for the U.S. market, as was your gun with "Laminated Steel", which is Twist.
Here is another
possibly made by Arnold Lochet
Does yours have this Parkerish buttplate?
Inspector's marks can not be used to date a Belgian gun; they were re-used and the significance of many has been lost. The best we can do is likely pre-1893. Odd that is only carries Provisional Proof and not the final
Banc D'Epreuves de Liege mark.
Under no circumstance should you attempt to shoot the gun, with any load.
Threaded Mode