Andrew Nethercott Antiques has dated this piece to the 1890s.
With two original gold bezels to retain photos

In very good sound condition with no damage or repair, good tight closure
Excluding both rings
35 mm x 30mm x 8mm or 1,3/8" x 1,3/16" x 5/16"
Weight 15.5 grams
Unmarked, tested as solid 15 carat gold
Ready to load with two photos, wear or collect
Andrew Nethercott Antiques has dated this piece to the 1890s.
Works of art, collectables, scientific and decorative antiques from the 17th - 20th century
You can view the stock and full dealer information on the Andrew Nethercott Antiques Profile Page