Ok, I got a chance to pull hub off of column. Still do not see any numbers, but general design suggests 60s-70s. Looking at pic above for reference, the wire color as follows, or reverse order for lower pic...
L to R Top Row - Blank spot / White with blue stripe / Solid blue / Yellow with black stripe
L to R Bottom Row - Blank spot / Solid red / Green with white stripe / Solid light green
Would it make any difference what model F-600, I seem to recall the manufacturer said it was out of a F-600 school bus(?)
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