This looks to me to be the more "standard" post-Harris style of carafe in shape. The Maltese Cross prunt mark was used while he was there, but also afterwards. Carafes were made when he was still there, but these often come much taller and more elongated than this, or with a larger, more bell-shaped bottom part, or smaller and slimmer, without pronounced shoulders. I have no idea when, or even if, they stopped being produced though.
Lovely markings in this one, I agree!