This is a wonderful heavily glazed charger (note one tiny chip of glaze missing on edge shown)
I have no idea of age. I suspect 1950's through to 1970's, Art Pottery, posdibly attributed to Jean Hampton? but I could be wrong. It is doing a very good impression of something far, far, older as in 500 years. Do me a favour, if you end up on Antiques Roadshow and it's worth thousands, I'd like 50% 😆😆