- still image (25)
- Building materials (4)
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- Caissons (1)
- Construction workers (1)
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- Steelwork (1)
- Towers (1)
- Trestles (1)
- Tunnels (2)
- 1933 Aug. 4 (1)
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- [1935 Aug. 12] (1)
- [1936 Jan. 27] (1)
- [between 1933 and 1937] (1)
- [n.d.] (1)