Bridge over the Monongahela at Fairmont
Public Domain: Published Prior to 1923; Courtesy of the DeGolyer Library, Southern Methodist University
View this photo at digitalcollections.smu.edu
BH Photo #469276
I'm not only fascinated by the structure of these early bridges but also the color.
I suspect that the tension members are white or cream but I'm not sure about the color of the compression members. I always assumed red but I would expect red to register as a deep black on old film. Also, in the first image there appears to be a third color on the endposts.
Anyone with knowledge of the color schemes or early photography care to comment?