Above the tympanum is a prominent cornice with balustraded parapet. Pilasters through the upper floors, cornice and parapet. The hipped roof is concealed by a balustraded parapet. Parapet and balustrade masonry is of particular concern. The brick tower has Chilmark stone dressings and is surmounted by an embattled parapet. The roofline is hidden by a balustraded parapet. It is described as a plain plastered building with a balustraded parapet and slate roofs. They are adorned with fortified parapet walls. A lower parapet, bordering the interior moat, connects the two bastions. Instead an 18-inch brick parapet was required, with the roof set behind. It had an octagonal log parapet containing five guns. The parapet (or railing) was high and thick. The trenches were traversed and had sentry-posts in concrete recesses built into the parapet. The XM706E2 featured no turret and an open-topped center parapet. Both towers are machicolated and Caesar's Tower features a unique double parapet.