Very old like 1930-40s ish , but truly beautiful! the Cameo and the Chain are both stamped 1/20 12KGF. Very lightweight feeling but it weights 8.6 grams. Length is 17 inches ( and that's not a mistake and it's actually 18 inches lol I quadruple checked and it is definitely 17 inches long not 18). Has no damage or scratches or anything, it is in excellent shape! see last Pics for details. Questions? Leave a comment below!