Aerial view of a helicopter flying over a freeway interchange in Los Angeles, April 1959

Photograph of an aerial view of a helicopter flying over a freeway interchange in Los Angeles, April 1959. The interchange can be seen at center and is at the intersection of two wide freeways, one of which goes from the top of the image to the bottom, while the other goes from left to right. Curving ramps connect the two freeways. A small helicopter can be seen in the foreground at left. Several automobiles are visible on the freeways.