This image is of the block of Stockton Street just before the intersection at Jackson Ave.
The description states:
A NIGHT IN EXOTIC CHINATOWN
SAN FRANCISCO, CALIFORNIA
Here in the largest settlement of Chinese outside of the Orient, one may browse in fascinating shops, taste exotic foods and enjoy a truly unique atmosphere, ticked away in the heart of the bustling, modern city.
–The signs for the Tai Chong Co. and the Shanghai Low give an accurate location of the photo, though the Tai Choing is now closed. The cars indicate the photo is from the 1950s.