These three fragments of pottery which we found while digging the lower veg bed must date from well before our house was built in the late 1930s. Perhaps they were mixed in with a wagonload of night-soil (contents of a privy) that was dumped on the field in Victorian times.
The blue and white design was the first to catch my eye. It was only when I took a macro photograph of the crazed white potshard that I spotted that it too has spots of blue glaze on it. A cross section reveals that both shards are made of the same kind of clay and are the same thickness. Both are very slightly curved so I think these are both pieces of a semi-rectangular, tray-like platter.
A view of the cross-section appears to show that it was made of two distinct layers of clay but in close-up you can see that the outer, darker layer fades towards the lighter inner layer. Is this an differential effect due to the way it was fired in the kiln?
It appears to have a light grey glaze on its outer surface. Perhaps it was slip-coated.