Hi guys,

New at this forum thing, so if I screw up, please be patient.

I have an o/u in 16 ga. over 6.5x52r. I have no name. I have proof marks from Austro-Hungarian Empire, Germany and Czechoslavakia. I have Krupp Laufstahl on the barrels. I have my best guess of circa 1931 in Weipert, Czechoslavakia. But, I have no name and my boss wants me to identify it for the purposes of valuation. We are an FFL dealer.
What are my options/next step?