I found this cute Royal Doulton bread and butter plate at the Moonee Ponds BSL last week - the original is much nicer than the photo. I don't know what the shape of the plate is called, but I like it.
The back mark with "Bone China" at the bottom intimates a date between 1928 and 1973, and the code bnumber V2247 gives a date of 1940, according to the Antiques Marks website.