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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The Emporium Department Store, Market Street: Complete failure of slow-burning wood construction.

photograph by Richard L. Humphrey