Bates & Bacon manufactured jewelry in Attleboro MA in the US from 1856 – 1943. The chain necklace is 14 1/4″, including the bale the cross pendant is 1 3/8″ by 3/4″, the set weighs 3.84 grams or. 135 ounce and is signed BATES & B. 1/20 G.F. hallmark pic shown the chain is unsigned.