The Chicago Tribune Historical Image Collection

49 to 64 of 159 pieces in Diagrams

How much is a billion dollars?
Title:
Published:
1938-09-11
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How sealed beam light works
Title:
Published:
1939-11-05
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How the army gas mask works
Title:
Published:
1933-12-24
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Humble earthworm
Title:
Published:
1934-10-14
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Man accepts challenge of heights and depths
Title:
Published:
1934-10-14
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Massacre 1915-1935
Title:
Published:
1935-12-29
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