To me it looks like it might be a GE Town and Country. But most of the major manufacturers including Cooper/McGraw Edison and American Electric make versions that look very similar.
These are made in HPS (older MV versions were also available) and are being made in LED versions too these days.
I've seen these in developments around here and some private ones in people's yards.
GE Town and Country American Electric LightingCooper/Eaton