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Trestle work (no. 2,) on City Point & Army R. R.

Trestle work (no. 2,) on City Point & Army R. R.

Photograph shows cut logs used in construction of a trestle bridge.

Trestle work (no. 1,) on City Point & Army R. R.

Trestle work (no. 1,) on City Point & Army R. R.

Photograph shows a trestle bridge over a creek. The albumen silver print is a photographic printing process that was widely used in the 19th century. It involves coating paper support with a mixture of egg whi... More