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A historic photo of Lambert Beach with a screen possibly for projecting film covering the pump house. Photo courtesy of the Brackenridge Park Conservancy.

A historic photo of Lambert Beach with a screen possibly for projecting film covering the pump house. Credit: Courtesy / Brackenridge Park Conservancy

A historic photo of Lambert Beach with a screen possibly for projecting film covering the pump house. Photo courtesy of the Brackenridge Park Conservancy.