Special Sale, America Hurrah postcard sets of ten, $1.00 postage to U. S included.
 

The San Francisco Earthquake and Fire of April 18, 1906, 
and their effects on structures and structural materials. 
(USGS report, 1907)

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Pacific States Telephone Building Main Exchange: Endurance of a well-protected building subjected to severe heat,

photograph by Richard L. Humphrey