Brother George
I wouldn't call the Hollenbeck, TBG, and Royal Gun company double guns precursors to what are known as the "American Classics", given that the first examples weren't available prior to 1901; but they were certainly high quality and expensive guns for the time, which surely had a lot to do with the inability of the three iterations of this company to sell in sufficient quantities and survive. Most of their production was in drillings, which models seem to show up for sale regularly; but if you ever get a chance to handle one of the Hollenbeck double guns I think you'll be impressed.

Yes Daryl, I'd surely like to see your engraved N.R. Davis; as I've certainly never seen one personally. And while you're posting photos of that gun be sure to share pix of your 16 gauge Krupp barreled Hollenbeck double gun; that's one heck of a nice piece! Tom