2. It has a preliminary proof mark, then an F with an arrow(?) pointing down to an R with what looks like a crown over it, then the traditional black powder proof mark.
About the marks. The "arrow" is a perron, proof of the breeching system. The R with crown is a rifled barrel over 8mm used since 1897. The F could be a date code or the inspector's mark. Either would date the proof to about 1927. The 9.2 is the bore in mm.
http://damascus-barrels.com/Belgian_All_Proofmarks.htmlPieper made a lot of proprietary cartridges. This could well have been chambered for an obsolete Pieper round for which there is no brass.
Send it back.
Mike posted some nice guns. I like this one that he posted:
http://www.gunsinternational.com/detail.cfm?id=100057670&string=act=advPete
