This unusual vintage set was probably purchased when my grandfather traveled to Mexico and out West on his honeymoon in 1924. He returned to the West with his kids in the 1930s so that is also possible. I am unfamiliar with the markings or crushed stone type in the mosaic inlay other than the turquoise. The colors appear green out of the sunlight but aqua in the sunlight from the window. See photos for the condition and colors. The scrolling silver within the inlay is beautiful. No stones are missing. One cufflink is slightly bent, but it shouldn't affect its use. I did not try to bend it back for fear of breaking it possibly. See photos.