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TULLY ALLAN CASTLE 551 - THIRD PERIOD surpasses anything of the same kind to be met with in any similar build- ing in Scotland. At the same time, defence is not lost sight of. The principal entrance (Fig. 46p) has been approached by a drawbridge, the FIG. 468. Tullyallan Castle. Interior of Ground Floor, looking East. recess from which, together with the aperture for the chain and the chamber for the windlass, are all well preserved (Section, Fig. 470). This entrance was also protected by a portcullis, and there are apertures or
