Detailed vintage street map of the City of Los Angeles, prepared by The Clason Map Company for the Security Trust & Savings Bank, and published in Los Angeles in 1921.
The primary map covers the City of Los Angeles north of Manchester and the so-called Shoestring Strip and south of Griffith Park. Almost all of the streets are named, and there are thick red lines indicating "automobile thoroughfares". At the bottom is a "Key to Boulevard Outlets and Best Connecting Streets", hinting at the still-nascent car infrastructure in the city.
On the back of a map is a great overview of the growth of the City of Los Angeles from 1890 to 1920. A note next to that map states "...In 1890, Los Angeles had a total area of 37¼ square miles, a population of 50,395, and an assessed valuation of $69,475,025... Los Angeles today has a total area of 352 square miles, a population of about 600,000 people, and an assessed valuation of $741,313,376."
The map of the Additions to Los Angeles notes every Addition, its square mileage, and the date on which it became part of the City of Los Angeles.