A RPPC of an artists rendering of the "New Los Angeles City Hall". The card is not postally marked, but the building was completed in 1928, so this card predates that. The description below is from the back of the card.
The RPPC card below shows how the building "towered" over the City of Angels. The building was in fact the tallest building in Los Angeles from 1928 until 1964. A little bit of trivia...the Los Angeles City Hall's concrete structure used sand collected from California's 21 historic Missions.