Antique English Ironstone Plate With Staining and Crazing

This old plate is a beauty. It is heavy and solid with a beautiful raised detail at the edge, all in plain white. The maker's mark on the back is debossed and also in white. There are a few pits in the glaze and it has ample crazing with some staining. There are no chips, cracks or breaks. 

Measures 8.5 inches diameter.