I agree. There is good chance it is an Aubrey. Most likely it is still around and shooting. I have one with Krupp barrels. While not the highest grade of barrel offered, they were the highest grade of barrel that I have actually seen. From the description, it was a graded gun. For some more info these guns:
http://damascus-barrels.com/Aubrey.html The grip caps and buttplates changed over time as did the engraving. The earlier guns were much nicer.
About the Red tail. They are still common here in Illinois. They migrate here in the spring and can really do a number on birds. Found a pheasant with head and neck missing. There was a Red tail circling over the field.
Pete
