Agreed Unkie...The Badge is of the "Auto Style". This transition phase could well have had a few indcisions...They would not have planned the Automatic to be a flop...It could have gone on for 100,000 more models if it was a success. So it would have been all hands on deck when they decided to pull the Auto....They may not have been 100% ready to release the Model 5S1 Special as they had planned.
These remaining model 4 mowers would have to suffice for sales of some kind,else the company would fair badly with nothing to offer....Id say the Special" NAME only was brought forward to thesse models,But NO badge was ready to be used on these mowers,because they were still being prepared/made/in production for the Original Model 5 S1 Special Release.
So A case of lets use the name on our Model 4 non autos until the badges are ready to be fitted...Seems very convincing. Your right Deejay..We have found many discrepencies in Artwork/ads thus far. I think it also proves that they werent fully ready with thier Special release. So they just relied on revamped Artwork from previous models to get a near enough.
This paticular Advert is the Most innacurate,which to me proves its also the Earliest! (And you will probaly find as time goes on,this Ad and this Exact mowers Stance were used in a prior Ad for the model 4 Auto or model 3 STD). I think this all but Solved unkie....Very Nice ads once again!.