Lee,
No, those are what I call dick head hooks. They were made in the 40's and 50's and are almost hand forged looking. No 2 are exactly alike. Here's a closeup of the hook and the tire mounting bracket.
I had another type of side mount bracket that was basically a 12" sq. plate,a section of 6" steel pipe and a smaller plate with 3 bolts to secure the tire to.
Ed,
I'm not too sure of the diameter of a 215/85R16 is but my tire size calculator says a 215/80R16 is 29.5" in diameter. My 15" tires are 30" dia. and they just fit on a low box. I would think you would have room on your W series too. You just have to raise it up till it clears the fender.