The Castle Postcard (posted 1908)
Picture Courtesy Richard Hammond

This latest is the most interesting of all the old Castle photos, as there is a plaque visible on the part of the tower that no longer exists. After looking very carefully at a few other old pictures it is visible on those as well. I am afraid you will have to take my word for it. Due to image and resolution size it is not clearly visible on the web site photos.
I have cropped that section and would like to know what those 4 letters mean, CEST