Thanks, I also had a thought, maybe this was one of the first R47 that was sent out as a test light to Toronto Hydro and that's why it doesn't have the markings and stickers.
I'll post both of those pictures soon, the only problem is I don't have an arm to mount the fixtures on, I may invest in one of those cheap ones from a hardware store.
That's what I did. I have two arms. A steel one that came with my yardblaster and an aluminum Regent one from Lowe's. If you have a pickit fence, just pop of the pole top and stick the arm in like I do. Works just like a davit pole. If I ever mount my lights, I would buy a better arm with a thru-bolt mount.
Here's a good side view