Title "Walls were ordered razed by the authorities."  The dangerous demolition work involved pulling down teetering brick walls with cables winched by donkey engines. The location of this ruin has resisted identification. Note the water heater tower [?] at the start of the sequence.

The camera pans past ruins to a wall about to be demolished. The slope behind the ruins may be Nob Hill, which would place this scene on a street to the south and west. The demolition of the wall and tall facade framing is seen.