The point is that this is a site about antique bottles, not liquor.
I suggest you ask someone at a site like https://www.masterofmalt.com - specifically you have Dupeyron armagnac - Napoleon only refers to the age when bottled. I think you will find plenty of listings for the Dupeyron product online...
I am curious as to where you listed your liquor at auction. eBay does not allow this. Perhaps you consigned it to an auctioneer? I get a lot of inquiries about vintage liquor and am hoping to expand the above referenced page on my website.