This was Pretty much the only one like this....all the other ones are Metal Halide...so these Fixtures must have originally all been MV..and this one is a lone Miss Out.
My local supermarket built in 1986 has a bunch of MH wall fixtures, one has the BT Sylvania MV! Still works! Fixture is actually very similar to this one above....but the outside is more squarish with rounded corners and is brown but the reflector is also round!
I'll try but I will feel funny doing it since it's at an entrance just after the door and I don't want to block anyone....plus I don't wanna look like a weirdo LOL
I have an old Westinghouse cylindrical landscape 175w MV fixture in Louisiana that I modified to make into a ceiling light similar to this for my bedroom. It created an interesting mood, but unfortunately didn't light the room all that evenly and I took it down.