
This cover left Sydney, New South Wales on July 13, 1857 and arrived in San Francisco
on November 3, 1857 for a total of almost four months in transit. It is addressed to a
Mr. Aaron, Esq. in Gold Spring, near Sonora, Tuolumne County, California.


Sonora was founded by Mexican miners during the California Gold Rush (after the state
of Sonora, Mexico). Here is a picture showing Sonora in 1852 from William Perkin's
Journal of Life at Sonora