.
While searching for 600. S. Coronado St.
(John T. Harris' former home) I happened upon this very interesting
RPPC on eBay.
eBay
3rd & Coronado Service Station, Los Angeles [no date]
Note the arched doorways on both sides of the service station property. They no doubt lead to stairs that go up to the higher elevation and apartments above.
UPDATE:
Wow! The northeast of 3rd and Coronado is relatively unchanged.
As you can see..the gas station is gone and a liquor store has taken its place.
Here's how the corner looks from above.
GSV
.