https://en.wikipedia.org/wiki/555_California_Street By the end of the 1960s, SF had a tower that was even big by NYC & Chicago standards.
https://www.skyscrapercenter.com/building/555-california-street/1027
https://www.sfgate.com/local/article/san-francisco-building-trump-stake-on-watchlist-17801816.php
https://www.sfchronicle.com/sf/article/555-california-falling-glass-san-francisco-17839533.php
https://sfyimby.com/2021/11/number-6-555-california-street-financial-district-san-francisco.html