The "portraits" are plastic and have a convex plastic dome over each of the images. I will have to figure out who the images are. If anyone has any ideas, please let me know. Perhaps they are some type of ornaments?
I also came across this unusual rectangular tray with plates and mugs. Most of the paint is missing, but each used to have a red border. I have not yet decided it if will take it the rest of the way off, or restore it. The tray measures about 1 inch by 3 inches. It is porcelain and not marked.