I'm in the process of scanning "Novalux" brand street lighting equipment section from a 1928 General Electric catalog. The pages show some water stains from a severe flood in my basement last year, but I think everything is legible
This and the rest of the catalog pages are available full sized at Albert's page as linked below: GE Catalog
Great Picture of Indianapolis :-) I have the GE 1939-40 catalogue with the Novalux fixtures. I suspect that WW II delayed delivery. The department of cute / historic district keeps trying to borrow my copy.
One thing I like about these streetlights is that they're incandescent, which I think is still the most attractive source for that purpose. Maybe it's because incandescent light is what most of us associate with our homes, so using it in a streetlight makes the outdoors feel more comfortable and inviting.
And there's something really beautiful about an incandescent streetlight in a rainstorm, or with snow swirling around it.
They seem to have found some kind of discharge lamp that gives off a light pretty close to incandescent, I occasionally see them pop up here in Austria. They are perfectly interchangeable with sodium lamps, that's why I guess gas discharge. Very nice, yellowish light, only sometimes a little too pink.