| Summary: | Construction of International Commerce and Industry Buildings, Century 21 Exposition (Seattle World's Fair). "Six hyperbolic paraboloid shells blending into a single fluted column make up two of the exhibit buildings; the third, not shown, is simply a box beam shelter. The twin structures actually are a collection of 52 of these shells and, with their classic Oriental overtones, seem to be particularly fitting for the foreign displays they contain. A fine, clean concrete surface was created by coating the four forms with fiberglass. High-early cement was used to cast the 1 ½ in. thick shells. With temperatures ranging from 35 to 65 deg., calcium chloride was added and cylinder strengths of over 3,000 lb. were obtained in 24 hours. Located on the northwest corner of the exposition site, the inside-out umbrellas with their colorful fiberglass panels present an exciting boundary.” (An Architect’s Guidebook to the Seattle World’s Fair. Seattle, Pacific Builder and Engineer, April 1962, p. 32.) Title taken from handwritten caption on verso. Date stamped on verso. 24.9 x 20.2 cm Master image scanned on Epson 10000 XL flatbed at 600 ppi, 24 bit color, saved as TIFF file. Photoshop used to reduce access image to 600 pixels on long edge; master image file size: 84,033,244 bytes.
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