This unattributed tri-color carbro portrait of singer, actress, comedian, and songwriter Gertrude Niesen (1911-1975) was probably photographed for The New York Daily News.  In 1939 a portable camera capable of exposing three negatives with three color filters at once was developed by the Daily News' Harry Warnecke, making it possible to shoot tri-color carbro photographs outside a studio.

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Gertrude Niesen

unattributed, c. 1939
vintage tri-color carbro print
13″ × 18″