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1by Field Museum of Natural HistoryContributors: “...Walters, Leon; Laybourne, Edgar; Rueckert, Arthur...”
Published 1950
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2by Field Museum of Natural HistoryContributors: “...Walters, Leon; Laybourne, Edgar; Rueckert, Arthur...”
Published 1938
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3by Field Museum of Natural HistoryContributors: “...Walters, Leon; Laybourne, Edgar; Rueckert, Arthur...”
Published 1938
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Still Image