PCAD - Images for the firm Brunnier, H.J. , Associates, Structural Engineers

Distant view of 555 California Street, San Francisco, 2010; from Flickr Commons, photo by Ed Clayton

Exterior view of the 555 California Street Office Building, San Francisco, 2004; from Wikimedia Commons, photo by Cookaa

Exterior view of the Hunter-Dulin Building, San Francisco, c. 1940; from the Bay Area Radio Museum

Exterior view of the Shell Oil Company Building, San Francisco, 2008; from Wikimedia Commons, photo by Eric in SF

Printed advertisement for the Hunter-Dulin Company, showing the firm's skyscraper office building, San Francisco, CA, 1927. From the Crocker-Langley San Francisco City Directory 1927, (San Francisco: R.L. Polk and Company, 1927), p. 1341