Item title reads: " Nerves Of Steel. Engineers at work erecting 192 ft crane from Baker Street Station - 31 ft. higher than Nelsons Column - provide daily thrills.
L/S of a tall crane with men at work midway. A man walks along the arm of the crane. The camera follows him out. Camera looks down to the street far below. From below L/S, men on the arm wave 'come back'. There are more shots up top of the men on the crane arm.
Note: It makes me nervous to think of it, stunning shots from a brave cameraman. That was surely going up in the world.