Erection in progress on a Colby hammerhead or double-cantilever gantry crane. This picture shows the completed framework of one crane, and erection started on a second unit.
To order a reproduction please see: http://www.libraries.wsu.edu/masc/ , or contact Washington State University Libraries, Manuscripts, Archives, and Special Collections: (509) 335-6691.
Rights
For permission to publish please contact Washington State University Libraries, Manuscripts, Archives, and Special Collections: (509) 335-6691.
