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The Georgian Revival was not a common stylistic choice of architects Hornblower and Marshall, but the deviations here from an archaeological rendition of that style give it a personalized architectural character. Treatment of the entire central bay—the over-scaled Ionic portico attached to the wall by brackets with no pilaster to give it visual support—contradicted the Renaissance heritage of the Georgian style. Three small square windows grouped together above the portico are elements common to the Georgian vocabulary, but their positioning by Hornblower and Marshall is a free interpretation of their original function as attic windows.