Andrew Nethercott Antiques has dated this piece to the 1910s.
makers mark C&R C for William Comyns & Sons Ltd (Charles & Richard Comyns)
retailer gilt marked J C Vicery Regent St. W
The shell with inlaid silver badges for Eton OTC (officers training corps) Floreat Etona

and RFC (Royal Flying Corps)
The photos not marked or inscribed
All in good sound condition, restorations to the inner rims of the tortoiseshell
Overall size of each frame, 7" x 4,5/8" or 176mm x 117mm,
Andrew Nethercott Antiques has dated this piece to the 1910s.
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