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Archival description99 resultados con objetos digitales Muestra los resultados con objetos digitales
La Colle Falls - "first breach in upstream coffer dam"
La Colle Falls - "coffer dam removed"
La Colle Falls - "reinforcement in place"
La Colle Falls
La Colle Falls - "showing several stages of apron construction"
La Colle Falls
La Colle Falls - "lock and dam looking upstream"
La Colle Falls - "lock looking upstream"
La Colle Falls - "lock looking upstream"
La Colle Falls
La Colle Falls
La Colle Falls - "Intake: first concrete"
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