We have debated the age issue on the rope adapters for years here in the Chattanooga area and with the various clubs we have around here. Most of the folks feel as I do, that is that they post date the war. The ones we find around here always have Ft. Oglethorpe relics along with it. Ft. Oglethorpe opened around the 1890s if my memory is correct. When we hunt CW sites in Dalton or Resaca we never find the rope adapters. I have them in two sizes with the smaller one having a patent date. I can't lay my hands on any with the patent date but for the most part I never collected them. I usually just gave them away.