"Wreck and Ruin of Chinatown District in San Francisco, Destroyed by Fire and Earthquake April 18, '06." (#1046)
Published by Truman Ward Ingersoll (1862-1922). He started releasing these sort of half-tone lithoviews in 1900.
It's likely printed from an original Ingersoll negative, but he did buy some negatives from other photographers.
Standard-size stereograph, measuring about 3.5 x 7 inches.
Will be shipped safely and securely! All of my paper items are protected in archival-safe polypropylene sleeves and packaged in rigged cardboard.