This is a single Myott, Sons & Co dinner plate I picked up in an op shop many years ago. The gilt band around the edge, and the band inside that (also gold) is very shiny, meant to attract bower-birds. I have an idea that the "H" in the back stamp stands for Myott's Hanley factory, which would date the plate at 1947+.
Myotts were apparently very well known for Art Deco pottery vases. A Myott collectors' webpage has a few samples of Myott back stamps, but none with the shield