need photos/dimensions of 1900 tunnel portals

Discussion in 'Logging, Mining and Industrial Railroads' started by hephaest, Dec 2, 2004.

  1. hephaest

    hephaest New Member

    does anyone know where i can find photos and dimensions of tunnel portals made of stone/brick around 1900. Especially usefull would be the dimensions and photo of a double (2 lane) tunnel portal

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