The glasses are marke tp 1/10 12k spg ,, the chain is marked 1/20 124 golid filed ,,, the chain does have a knot in it. The frames and opticals are in very good condition.The item “Antique Early 1900s Pince-Nez Eyeglasses TP 1/10 12K SPG” is in sale since Monday, March 09, 2015. This item is in the category “Antiques\Science & Medicine (Pre-1930)\Scientific Instruments\Barometers”. The seller is “raceedge2″ and is located in Florence, Kentucky. This item can be shipped to United States.