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The wonders of science
COM23A01_054

The wonders of science

The wonders of science
COM23A00_439

The wonders of science

Tests on a biplane / Ferdinand Ferber
COM14A00_492

Tests on a biplane / Ferdinand Ferber

Testing of a P-7 Neufeldt and Kuhnk metal diving suit, in France (1926)
COM02050_2851

Testing of a P-7 Neufeldt and Kuhnk metal diving s...

Testing of a P-7 Neufeldt and Kuhnk metal diving suit, in France (1926)
COM02050_2852

Testing of a P-7 Neufeldt and Kuhnk metal diving s...

World War I. Making finned 240-mm bombs
COM01355_0925

World War I. Making finned 240-mm bombs

Beaumont testing his hydroplane, 1912
COM01317_0011

Beaumont testing his hydroplane, 1912