Picked these at an estate sale of a very elderly person, box marked "Japanese Floats" I was going to sell them as a group, but from the research that I have done, the bright red, yellow, amethyst, cobalt ones might actually be very rare, rather than recent reproductions. I have read through lots of information and still can't tell for certain. No markings at all on any of them. Even though I am probably asking for the impossible, I would greatly appreciate help. I am near Seattle in case there is anyone in the area who appraises or authenticates them. They each measure about 3 inches. Happy to send photos of individual ones the file was too big. Many thanks!