View of comparative engineering tests for the Equitable Building Company in Denver, Colorado; shows men working and an arch with tiling, steel girders, and brick foundations.
Equitable Building (Denver, Colo.)--1890-1900.; Building materials--Testing--Colorado--Denver--1890-1900.; Denver (Colo.)--1890-1900.; Laborers--Colorado--Denver--1890-1900.; Testing--Colorado--Denver--1890-1900.
Display a larger image and more item information when the pointer pauses over a thumbnail
Thumbnail with title
Grid with smaller thumbnails and more detail
Select the collections to add or remove from your search