I forgot the photocontrol receptacle. Those are also very unique on these Unistyles.

Yes it is! It's really cool!

Not the original refractor though. Looks like a Westinghouse glass.

Did Westinghouse use Pyrex because that's what this refractor is an we have many unistyles in my area with these refractors.

Nice Unistyle mike,looks in really good condition!

If this isn't the original refractor, what is? I've never seen this prism design before. On the bottom-front of the glass it says <-- II-Way -->. My Westinghouse refractors all say <-- 2-Way --> on them.

Thanks Darren, yep a pretty slick looking fixture!

I'm looking at one of my Unistyle refractors right now, and it looks the same as yours, but at the same time, it doesn't. Mine seems more rounded off and yours looks a bit more squared. Could just be the picture. Mine is marked "LINE MATERIAL NO L0219X1" on one side rim. The other side rim is marked "HOLOPHANE (R) NO. 4222 PAT. NO. 3089024 3284626 ENDURAL (R) CAN. PAT. 1963"

From what I understand Line Material/McGraw-Edison used two different refractors like GE did.

I believe if you check the rim of the refractor, there is a McGraw Edison stamp on it.

You are correct, so this is indeed the original glass. The print on the rim is harder to read on Pyrex glasses than on Holophane but I can see "MCGRAW-EDISON CAT. NO. LC219X1" on one side of the rim.