From a Florida estate, this is a delicate little chain made with solid 14k white gold by Speidel. It's hallmarked "14k Speidel". Weight is approximately 1.2 grams.
Width is 1 mm, length is 14 & 3/4 inches.
It's in very good vintage condition, I see no damage to mention. The clasp works fine.
I do have other vintage linens, lace, fabric and jewelry on auction and am happy to combine shipping.