Representative tiles from the Long Island portion of the map have been removed for on-going conservation treatment. Each tile was temporarily faced with gauze, adhesive and Plaster of Paris for protection and then lifted and crated for transport. Tiles were then reversed and their cement underbed and corroded iron reinforcement bars removed and replaced with a strong lightweight plastic honeycomb support set in mortar. The tiles were then turned, the face cleaned, and work began on stabilizing the cracked terrazzo using epoxy and mortar injections. Finally all losses were filled with recessed mortar and insets replaced with laser cut replicas.
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