Powell and Market Streets - San Francisco, California - Color by Cal-Pictures - Vintage Postcard Cotton_Wharf Engineers at the California Institute

Engineers at the California Institute of Technology spent many years alone in the grinding and polishing of the great 200 inch mirror lens

Mailed: Postmark on February 7

Vermont at sunset

Cruising the Rivers of America

Front: 662 | One of California's Famous Oil Fields at Night

Powell and Market Streets - San Francisco, California - Color by Cal-Pictures - Vintage Postcard Cotton_Wharf Engineers at the California InstituteOn front: A photo of Powell and Market Streets in San Francisco, California On back: POWELL AND MARKET STREETS . . . The famous San Francisco Cable Cars, after complete it their exciting run up and down San Francisco hills, are turned around on Powell and Market turntable for another adventurous trip. Unmailed Condition: Great with some aging around the edges Publisher: Smith News Co. Color print