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All Collections- All fields: X-20795
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- Report of tests of fire proof arches, made in Denver, Colorado, for the Denver Equitable Building Company
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View of comparative engineering tests for the Equitable Building Company in Denver, Colorado; shows a collapsed arch, bricks, steel girders, and a smokestack. Letters read: "D10." -
Equitable Building (Denver, Colo.)--1890-1900.; Building materials--Effect of temperature on--Colorado--Denver--1890-1900.; Building materials--Testing--Colorado--Denver--1890-1900.; Denver (Colo.)--1890-1900.; Testing--Colorado--Denver--1890-1900. -
December 1890
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