This is another Harry Adams photograph from the Tom & Ethel Bradley Center at CSUN. It is captioned "Street scene with police, Los Angeles, 1957."
Tom & Ethel Bradley Center at CSUN via Calisphere
At first glance, there's not too much to work with. It looks like the street number 1055 might belong to some kind of printing establishment.
Doing a proximity search for "1055" and "printing" in the LAPL CDs, though, gave a hit in the 1964 directory at 1055 E. 41st street:
lapl.org
Here is a 1964 aerial:
historicaerials.com
The building appears in all views of the area at historicaerials.com from 1948 on. The county assessor dates it to 1906.
Looking at the LADBS permits for this address, there is a familiar name connected to the print business:
LADBS
Charlotta Bass was the publisher of the California Eagle, one of the two main African-American newspapers in Los Angeles.
oldstuff and
HossC posted about her in 2015.
The building is a survivor. The Wadsworth Avenue Elementary School is seen at the left edge of both the "then" and "now" views.
GSV