Postcard - Phoenix, Arizona

"North Central Highrise Complex, Phoenix, Arizona. Viewing from the left: Executive Towers Apartments, Del Webb's Towne House, Del Webb Office Building, Guarantee Bank, and the Financial Center. The two circular satellites adjacent to the Financial Center are the Pioneer and Home Savings Banks. Picturesque Squaw Peak looms on the horizon."

I'm guessing 2nd half of the 1960s. Squaw Peak was renamed Piestewa Peak in 2003.