1800s Victorian Era Open Locket Hand Painted Portrait Necklace

Rare find ! Years ago, I purchased an Estate Lot from Berkshire, England and this is one of those pieces. It's truly Antique, Circa Mid 1800s, Victorian Era, Open Locket, Chain Necklace. The Open Locket is Rose Gold. In the photo above, I tested with 14kt gold acid and it held its color, as shown however, it could very well be Heavily Rolled with Solid Gold, since they used to craft so well in that Era. The top of the Open Locket screws and unscrews to open and place photos inside. Each side has a GLASS cover. Inside, currently, is a beautiful hand painted lady on one of the sides. The chain is Gold Washed Brass with the old turnstyle clasp and measures 15.75 in length. The Locket, including bail, measures 1.75 long. For over 150yrs old, it's in Superb Antique Condition. The Top of the center piece twists off to open, in order for you to add a photo or keepsake ❣️ Item J15. I've been in Vintage/Antique jewelry for over 35yrs and I sell some new items occasionally. Feel free to ask questions. Be SURE to READ Measurements that have been painstakingly, time consuming and Carefully GIVEN in EVERY Listing so that YOU WILL KNOW what you are receiving. Pictures are blown up IN ORDER to see Actual Detail.  MY LISTINGS GENERALLY CONSIST OF MANY ONE OF A KIND OR VERY RARE PIECES, SOLID 14KT ITEMS, PLATINUM, 18KT, DIAMONDS, AMETHYSTS, TOPAZ, AGATE, EMERALDS, SAPPHIRES, OPALS, STERLING SILVER, VINTAGE AND ANTIQUE PIECES, BOLD AND RUNWAY-ERA...