Here's my Cooper Lighting Vanguard fixture. I had to do some repairs to the refractor/reflector because it was ready to break off. It has a 400 watt General Electric coated mercury vapor bulb in it.
Nice! If you were ever to stick this outside I would apply some silicone caulking around the screws though since it looks like they're sticking out on top. Cooper's Vanguard hasn't changed much from the original Westinghouse design. Some small stuff (I think the Westie ones had the refractor attached to the outside of the reflector) but still the same essential design. I think same goes for the Cooper NEMA head, though the last edition of the Westinghouse RMA was pretty chintzy IMO. I have a 1968 100W MV RMA and it's much nicer. Cooper still used the Westie style PC socket and other small components in their fixtures too, which is cool. Comes in handy when repairing old Westie lights, though one-by-one Cooper drops the original Westie parts.
I think Crouse-Hinds owned the Vanguard for a period of time between Cooper lighting and Westinghouse. This one was probably one of the first years that cooper lighting manufactured them. The lens on this one was broken originally, so I went to H&R (one of the local electrical distributers) and ordered a new lens in. They had given me a lens/reflector for a "cheaper" Regent NEMA fixture, so I "pealed" the reflector off the lens lol.
Crouse-Hinds was already owned by Cooper Industries when Westinghouse went under in 19. Cooper bought out Westie, not Crouse-Hinds. Crouse-Hinds was Cooper's name for their street light division until the late 1990s or early 2000s, when the Streetworks name was introduced. But yeah, Crouse-Hinds was already owned by Cooper at the time Westinghouse was bought out. Over time the Cooper name has grown bigger and bigger but now that Eaton owns Cooper, the Cooper name is getting less prominent. Eaton bought Cooper Industries on November 30, 2012.
Yep Crouse-Hinds was acquired by Cooper Industries in 1981, just one year before Cooper bought Westinghouse. Around 2001 or so Cooper switched their street light division from Crouse-Hinds Lighting to Streetworks and made Crouse-Hinds simply for hazardeous/marine lighting.