1920s Chinese Import Mens Adjustable Shank Ring with Asian Man Picture Under Glass

This is a stunning example of the Chinese import rings. I believe it is from the 20s but could be as early as the turn of the century. It has a 20x14mm oval of what appears to be glass with a Chinese man picture underneath. It has an adjustable shank and it can go to a size 13 and is set at a size 8 now. It can also be squeezed togther for a smaller size. The metal appears to be silver plated copper. It is in very good condition.