This was shot by a midwestern delegate who'd come to San Francisco in the summer of 1956 for the Republican National Convention (where they nominated Dwight Eisenhower). This is a 2-minute series of shots taken from a larger 17-minute collection of footage. About half of the footage was shot of the Air Force Station during an outing these folks made to Mt. Tamalpais.
Footage has been stabilized and cropped to 16:9.
From the Prelinger Archives.