The sign says "Junior-Norris". Junior-Norris Galvanizing Inc was based at 1823 E Washington Boulevard (according to the 1932 CD). BTW, I did mention that the picture I posted yesterday of the General Motors Truck Co was part of a set with different views of the intersection. Here's a sharper view of the Richfield gas station and some of the buildings. I also like the hanging GMC sign on the left.
Detail of picture at
USC Digital Library