Horatio Allen (1802-1899)
Allen was a civil engineer and inventor. Allen was a consulting engineer for the construction of the Brooklyn Bridge and the Panama Railroad. He received three United States patents for inventions connected with the cut-off valves of steam engines. He was the president of the American Society of Civil Engineers in 1872.
- 1875 circa 5 years
- Original Format:
- Glass Negative Print
- Mathew Brady
- download hi-res watermarked image
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