Brad, you are right turn the instruction over it has the model discriptions
I found Ole Blue on CL picked it up saturday am for......$45. I thought I was buying just a new unused grill, but when I found out it was 30 years old and blue I'm not sure I should use it.
Congrats, great find. Put that thing in the garage and just stare at it and rub it with a soft cloth every once in awhile!