Hi, I own this French fork in solid silver. It shows the 1798-1808 hallmark title (a rooster) and the Paris Guarantee hallmark. I can not read the name of the silversmith: J (?) A D ? Can someone help me? Thank you ! https://s31.postimg.cc/ame796a7f/photo1.jpg https://s31.postimg.cc/ndsdfsuaz/photo2...