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BALVAIRD CASTLE 339 THIRD PERIOD observe the change from the original and simply useful forms of the machicolations and corbels to a more ornamental design (Figs. 290, 29),
BALVAIRD CASTLE 339 THIRD PERIOD observe the change from the original and simply useful forms of the machicolations and corbels to a more ornamental design (Figs. 290, 29),