Part of the California Cereal Products plant on 14th Street in West Oakland. This factory was built in 1915 by the Shredded Wheat Company, then taken over by the National Biscuit Company (Nabisco) in 1928. Today it makes rice flour and corn flakes. Do look at it full size to see the male and female faces. I learned about this building from a blog post by a foodie who toured the factory in 2011:
http://lisadlau.wordpress.com/2011/09/12/a-tour-of-oakland-food-industries/