Johnson Brothers stamp and "A Genuine Hand Engraving". The pattern name of Rose and "Old Flower Prints" is also stamped on the back of each plate.Most likely these plates are from the 1940's. The diameter of the plates is 10 5/8" x 3/4" tall. No chips, cracks or crazing. Several plates have small scratches all on the underside close to where there is a spot where the dish sat during firing.
There are a few very small black spots on edges most likely from manufacturing process. We are not experts, but we try to provide as much information as possible, including pictures from several angles.