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In page National Museum of Singapore:

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The balustrades on the second floor of the old rotunda were patterned after those in London's Royal Albert Hall. The details of the balustrades were hidden after years of paint. The old paint was removed and a special clear coat was applied to prevent rusting of the wrought iron and to allow the details to be visible. Plaster works were carried out on the plaster motifs, cornices, balustrades, capitals and carving of the old building were either deteriorated or destroyed during the earlier renovations. Skilled artisans from India were brought in to recreate the plaster works which include restoring many of the windows, doors and cornices.