I agree, mistakes find their way into print, I've had my fair share of them. 

I do have an operator's manual for the 88 dated 1946 with pictures of the tractor inside, but that could have been one of the prototypes for all I know. It would be interesting to find an early Streamlined 88 and see what kind of casting dates it has on it, that would give some good hard evidence as to when they were made. I'll check my 88 industrial today and see what it has for dates. Unfortunately, the serial tag is missing from that tractor.