1904-5 Solid Silver Art Nouveau Miniature Small Picture Frame Hallmarked RARE

This small frame is solid hallmarked silver.  You can see the marks at the top of the frame.  The maker's initials on one side and the hallmark on the other.  The frame has never been cleaned so very black but I believe the marks to read: G & CT and i (thick) for 1904-5.  Condition as shown which is good vintage.  No back to the frame but this is easily done.  The frame measures, 1-13/16" square and 1/4" at the sides. Only the front is solid silver the rest is card paper.  Weight, 5.5grams.